Home / 15,560.20-21,472.68-8,486.56

Finding the Fourth Proportional to 15,560.20, 21,472.68 and 8,486.56

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Solution

The fourth proportional to 15,560.20, 21,472.68 and 8,486.56 is: 11,711.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,560.20 : 21,472.68 = 8,486.56 : x
  2. Step 2: Convert to fraction form
    15,560.20/21,472.68 = 8,486.56/x
  3. Step 3: Cross multiply
    15,560.20x = 21,472.68 × 8,486.56
  4. Step 4: Simplify right side
    15,560.20x = 182,229,187.18
  5. Step 5: Solve for x
    x = 182,229,187.18/15,560.20
  6. Step 6: Final answer
    x = 11,711.24

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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.