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Finding the Fourth Proportional to 8,959.39, 13,371.32 and 8,726.11

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Solution

The fourth proportional to 8,959.39, 13,371.32 and 8,726.11 is: 13,023.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,959.39 : 13,371.32 = 8,726.11 : x
  2. Step 2: Convert to fraction form
    8,959.39/13,371.32 = 8,726.11/x
  3. Step 3: Cross multiply
    8,959.39x = 13,371.32 × 8,726.11
  4. Step 4: Simplify right side
    8,959.39x = 116,679,609.17
  5. Step 5: Solve for x
    x = 116,679,609.17/8,959.39
  6. Step 6: Final answer
    x = 13,023.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.