Home / 15,732.42-21,710.76-8,659.26

Finding the Fourth Proportional to 15,732.42, 21,710.76 and 8,659.26

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Solution

The fourth proportional to 15,732.42, 21,710.76 and 8,659.26 is: 11,949.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,732.42 : 21,710.76 = 8,659.26 : x
  2. Step 2: Convert to fraction form
    15,732.42/21,710.76 = 8,659.26/x
  3. Step 3: Cross multiply
    15,732.42x = 21,710.76 × 8,659.26
  4. Step 4: Simplify right side
    15,732.42x = 187,999,115.64
  5. Step 5: Solve for x
    x = 187,999,115.64/15,732.42
  6. Step 6: Final answer
    x = 11,949.79

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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.