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Finding the Fourth Proportional to 8,741.17, 13,127.28 and 8,274.14

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Solution

The fourth proportional to 8,741.17, 13,127.28 and 8,274.14 is: 12,425.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,741.17 : 13,127.28 = 8,274.14 : x
  2. Step 2: Convert to fraction form
    8,741.17/13,127.28 = 8,274.14/x
  3. Step 3: Cross multiply
    8,741.17x = 13,127.28 × 8,274.14
  4. Step 4: Simplify right side
    8,741.17x = 108,616,952.54
  5. Step 5: Solve for x
    x = 108,616,952.54/8,741.17
  6. Step 6: Final answer
    x = 12,425.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.