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Finding the Fourth Proportional to 16,689.39, 23,031.41 and 9,237.39

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Solution

The fourth proportional to 16,689.39, 23,031.41 and 9,237.39 is: 12,747.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,689.39 : 23,031.41 = 9,237.39 : x
  2. Step 2: Convert to fraction form
    16,689.39/23,031.41 = 9,237.39/x
  3. Step 3: Cross multiply
    16,689.39x = 23,031.41 × 9,237.39
  4. Step 4: Simplify right side
    16,689.39x = 212,750,070.23
  5. Step 5: Solve for x
    x = 212,750,070.23/16,689.39
  6. Step 6: Final answer
    x = 12,747.62

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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.