Home / 10,645.38-15,961.20-5,098.59

Finding the Fourth Proportional to 10,645.38, 15,961.20 and 5,098.59

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Solution

The fourth proportional to 10,645.38, 15,961.20 and 5,098.59 is: 7,644.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,645.38 : 15,961.20 = 5,098.59 : x
  2. Step 2: Convert to fraction form
    10,645.38/15,961.20 = 5,098.59/x
  3. Step 3: Cross multiply
    10,645.38x = 15,961.20 × 5,098.59
  4. Step 4: Simplify right side
    10,645.38x = 81,379,614.71
  5. Step 5: Solve for x
    x = 81,379,614.71/10,645.38
  6. Step 6: Final answer
    x = 7,644.59

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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.