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Finding the Fourth Proportional to 16,689.08, 25,045.86 and 8,366.78

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Solution

The fourth proportional to 16,689.08, 25,045.86 and 8,366.78 is: 12,556.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,689.08 : 25,045.86 = 8,366.78 : x
  2. Step 2: Convert to fraction form
    16,689.08/25,045.86 = 8,366.78/x
  3. Step 3: Cross multiply
    16,689.08x = 25,045.86 × 8,366.78
  4. Step 4: Simplify right side
    16,689.08x = 209,553,200.53
  5. Step 5: Solve for x
    x = 209,553,200.53/16,689.08
  6. Step 6: Final answer
    x = 12,556.31

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1.5x scale

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.