Home / 15,732.32-21,710.43-8,658.59

Finding the Fourth Proportional to 15,732.32, 21,710.43 and 8,658.59

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Solution

The fourth proportional to 15,732.32, 21,710.43 and 8,658.59 is: 11,948.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,732.32 : 21,710.43 = 8,658.59 : x
  2. Step 2: Convert to fraction form
    15,732.32/21,710.43 = 8,658.59/x
  3. Step 3: Cross multiply
    15,732.32x = 21,710.43 × 8,658.59
  4. Step 4: Simplify right side
    15,732.32x = 187,981,603.54
  5. Step 5: Solve for x
    x = 187,981,603.54/15,732.32
  6. Step 6: Final answer
    x = 11,948.76

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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.