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Finding the Fourth Proportional to 12,242.52, 16,891.68 and 7,206.96

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Solution

The fourth proportional to 12,242.52, 16,891.68 and 7,206.96 is: 9,943.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,242.52 : 16,891.68 = 7,206.96 : x
  2. Step 2: Convert to fraction form
    12,242.52/16,891.68 = 7,206.96/x
  3. Step 3: Cross multiply
    12,242.52x = 16,891.68 × 7,206.96
  4. Step 4: Simplify right side
    12,242.52x = 121,737,662.09
  5. Step 5: Solve for x
    x = 121,737,662.09/12,242.52
  6. Step 6: Final answer
    x = 9,943.84

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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.