Home / 10,431.66-15,554.43-9,272.55

Finding the Fourth Proportional to 10,431.66, 15,554.43 and 9,272.55

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Solution

The fourth proportional to 10,431.66, 15,554.43 and 9,272.55 is: 13,826.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,431.66 : 15,554.43 = 9,272.55 : x
  2. Step 2: Convert to fraction form
    10,431.66/15,554.43 = 9,272.55/x
  3. Step 3: Cross multiply
    10,431.66x = 15,554.43 × 9,272.55
  4. Step 4: Simplify right side
    10,431.66x = 144,229,229.90
  5. Step 5: Solve for x
    x = 144,229,229.90/10,431.66
  6. Step 6: Final answer
    x = 13,826.11

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.