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Finding the Fourth Proportional to 12,941.80, 17,838.17 and 9,160.11

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Solution

The fourth proportional to 12,941.80, 17,838.17 and 9,160.11 is: 12,625.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,941.80 : 17,838.17 = 9,160.11 : x
  2. Step 2: Convert to fraction form
    12,941.80/17,838.17 = 9,160.11/x
  3. Step 3: Cross multiply
    12,941.80x = 17,838.17 × 9,160.11
  4. Step 4: Simplify right side
    12,941.80x = 163,399,689.64
  5. Step 5: Solve for x
    x = 163,399,689.64/12,941.80
  6. Step 6: Final answer
    x = 12,625.73

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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.