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Finding the Fourth Proportional to 16,488.89, 24,740.24 and 7,124.09

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Solution

The fourth proportional to 16,488.89, 24,740.24 and 7,124.09 is: 10,689.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,488.89 : 24,740.24 = 7,124.09 : x
  2. Step 2: Convert to fraction form
    16,488.89/24,740.24 = 7,124.09/x
  3. Step 3: Cross multiply
    16,488.89x = 24,740.24 × 7,124.09
  4. Step 4: Simplify right side
    16,488.89x = 176,251,537.06
  5. Step 5: Solve for x
    x = 176,251,537.06/16,488.89
  6. Step 6: Final answer
    x = 10,689.11

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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.