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Finding the Fourth Proportional to 12,570.39, 17,344.13 and 7,264.89

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Solution

The fourth proportional to 12,570.39, 17,344.13 and 7,264.89 is: 10,023.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,570.39 : 17,344.13 = 7,264.89 : x
  2. Step 2: Convert to fraction form
    12,570.39/17,344.13 = 7,264.89/x
  3. Step 3: Cross multiply
    12,570.39x = 17,344.13 × 7,264.89
  4. Step 4: Simplify right side
    12,570.39x = 126,003,160.27
  5. Step 5: Solve for x
    x = 126,003,160.27/12,570.39
  6. Step 6: Final answer
    x = 10,023.81

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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.