Home / 8,039.48-11,091.80-4,679.60

Finding the Fourth Proportional to 8,039.48, 11,091.80 and 4,679.60

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Solution

The fourth proportional to 8,039.48, 11,091.80 and 4,679.60 is: 6,456.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,039.48 : 11,091.80 = 4,679.60 : x
  2. Step 2: Convert to fraction form
    8,039.48/11,091.80 = 4,679.60/x
  3. Step 3: Cross multiply
    8,039.48x = 11,091.80 × 4,679.60
  4. Step 4: Simplify right side
    8,039.48x = 51,905,143.52
  5. Step 5: Solve for x
    x = 51,905,143.52/8,039.48
  6. Step 6: Final answer
    x = 6,456.29

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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.