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Finding the Fourth Proportional to 12,937.56, 17,854.34 and 7,272.42

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Solution

The fourth proportional to 12,937.56, 17,854.34 and 7,272.42 is: 10,036.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,937.56 : 17,854.34 = 7,272.42 : x
  2. Step 2: Convert to fraction form
    12,937.56/17,854.34 = 7,272.42/x
  3. Step 3: Cross multiply
    12,937.56x = 17,854.34 × 7,272.42
  4. Step 4: Simplify right side
    12,937.56x = 129,844,222.94
  5. Step 5: Solve for x
    x = 129,844,222.94/12,937.56
  6. Step 6: Final answer
    x = 10,036.22

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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.