Home / 10,427.64-15,635.80-5,151.10

Finding the Fourth Proportional to 10,427.64, 15,635.80 and 5,151.10

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Solution

The fourth proportional to 10,427.64, 15,635.80 and 5,151.10 is: 7,723.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,427.64 : 15,635.80 = 5,151.10 : x
  2. Step 2: Convert to fraction form
    10,427.64/15,635.80 = 5,151.10/x
  3. Step 3: Cross multiply
    10,427.64x = 15,635.80 × 5,151.10
  4. Step 4: Simplify right side
    10,427.64x = 80,541,569.38
  5. Step 5: Solve for x
    x = 80,541,569.38/10,427.64
  6. Step 6: Final answer
    x = 7,723.85

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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.