Home / 8,702.48-12,010.74-5,560.76

Finding the Fourth Proportional to 8,702.48, 12,010.74 and 5,560.76

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Solution

The fourth proportional to 8,702.48, 12,010.74 and 5,560.76 is: 7,674.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,702.48 : 12,010.74 = 5,560.76 : x
  2. Step 2: Convert to fraction form
    8,702.48/12,010.74 = 5,560.76/x
  3. Step 3: Cross multiply
    8,702.48x = 12,010.74 × 5,560.76
  4. Step 4: Simplify right side
    8,702.48x = 66,788,842.56
  5. Step 5: Solve for x
    x = 66,788,842.56/8,702.48
  6. Step 6: Final answer
    x = 7,674.69

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Find fourth proportional to 4,351.24, 6,005.37 and 2,780.38
Half scale
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Double scale
Find fourth proportional to 8,703.48, 12,012.12 and 5,561.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.