Home / 16,869.91-25,320.22-8,979.05

Finding the Fourth Proportional to 16,869.91, 25,320.22 and 8,979.05

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Solution

The fourth proportional to 16,869.91, 25,320.22 and 8,979.05 is: 13,476.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,869.91 : 25,320.22 = 8,979.05 : x
  2. Step 2: Convert to fraction form
    16,869.91/25,320.22 = 8,979.05/x
  3. Step 3: Cross multiply
    16,869.91x = 25,320.22 × 8,979.05
  4. Step 4: Simplify right side
    16,869.91x = 227,351,402.98
  5. Step 5: Solve for x
    x = 227,351,402.98/16,869.91
  6. Step 6: Final answer
    x = 13,476.74

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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.