Home / 15,687.28-23,531.20-5,699.12

Finding the Fourth Proportional to 15,687.28, 23,531.20 and 5,699.12

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Solution

The fourth proportional to 15,687.28, 23,531.20 and 5,699.12 is: 8,548.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,687.28 : 23,531.20 = 5,699.12 : x
  2. Step 2: Convert to fraction form
    15,687.28/23,531.20 = 5,699.12/x
  3. Step 3: Cross multiply
    15,687.28x = 23,531.20 × 5,699.12
  4. Step 4: Simplify right side
    15,687.28x = 134,107,011.33
  5. Step 5: Solve for x
    x = 134,107,011.33/15,687.28
  6. Step 6: Final answer
    x = 8,548.78

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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.