Home / 8,809.35-12,157.29-4,830.75

Finding the Fourth Proportional to 8,809.35, 12,157.29 and 4,830.75

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Solution

The fourth proportional to 8,809.35, 12,157.29 and 4,830.75 is: 6,666.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,809.35 : 12,157.29 = 4,830.75 : x
  2. Step 2: Convert to fraction form
    8,809.35/12,157.29 = 4,830.75/x
  3. Step 3: Cross multiply
    8,809.35x = 12,157.29 × 4,830.75
  4. Step 4: Simplify right side
    8,809.35x = 58,728,828.67
  5. Step 5: Solve for x
    x = 58,728,828.67/8,809.35
  6. Step 6: Final answer
    x = 6,666.65

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Find fourth proportional to 4,404.68, 6,078.65 and 2,415.38
Half scale
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Double scale
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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.