Home / 15,560.32-21,473.45-8,486.74

Finding the Fourth Proportional to 15,560.32, 21,473.45 and 8,486.74

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Solution

The fourth proportional to 15,560.32, 21,473.45 and 8,486.74 is: 11,711.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,560.32 : 21,473.45 = 8,486.74 : x
  2. Step 2: Convert to fraction form
    15,560.32/21,473.45 = 8,486.74/x
  3. Step 3: Cross multiply
    15,560.32x = 21,473.45 × 8,486.74
  4. Step 4: Simplify right side
    15,560.32x = 182,239,651.02
  5. Step 5: Solve for x
    x = 182,239,651.02/15,560.32
  6. Step 6: Final answer
    x = 11,711.82

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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.