Home / 10,583.10-15,874.65-9,781.20

Finding the Fourth Proportional to 10,583.10, 15,874.65 and 9,781.20

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Solution

The fourth proportional to 10,583.10, 15,874.65 and 9,781.20 is: 14,671.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,583.10 : 15,874.65 = 9,781.20 : x
  2. Step 2: Convert to fraction form
    10,583.10/15,874.65 = 9,781.20/x
  3. Step 3: Cross multiply
    10,583.10x = 15,874.65 × 9,781.20
  4. Step 4: Simplify right side
    10,583.10x = 155,273,126.58
  5. Step 5: Solve for x
    x = 155,273,126.58/10,583.10
  6. Step 6: Final answer
    x = 14,671.80

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.