Home / 15,732.48-21,711.29-8,659.34

Finding the Fourth Proportional to 15,732.48, 21,711.29 and 8,659.34

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Solution

The fourth proportional to 15,732.48, 21,711.29 and 8,659.34 is: 11,950.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,732.48 : 21,711.29 = 8,659.34 : x
  2. Step 2: Convert to fraction form
    15,732.48/21,711.29 = 8,659.34/x
  3. Step 3: Cross multiply
    15,732.48x = 21,711.29 × 8,659.34
  4. Step 4: Simplify right side
    15,732.48x = 188,005,290.10
  5. Step 5: Solve for x
    x = 188,005,290.10/15,732.48
  6. Step 6: Final answer
    x = 11,950.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.