Home / 16,990.52-25,489.33-8,561.76

Finding the Fourth Proportional to 16,990.52, 25,489.33 and 8,561.76

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Solution

The fourth proportional to 16,990.52, 25,489.33 and 8,561.76 is: 12,844.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,990.52 : 25,489.33 = 8,561.76 : x
  2. Step 2: Convert to fraction form
    16,990.52/25,489.33 = 8,561.76/x
  3. Step 3: Cross multiply
    16,990.52x = 25,489.33 × 8,561.76
  4. Step 4: Simplify right side
    16,990.52x = 218,233,483.21
  5. Step 5: Solve for x
    x = 218,233,483.21/16,990.52
  6. Step 6: Final answer
    x = 12,844.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.