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Finding the Fourth Proportional to 8,960.39, 13,372.81 and 8,727.11

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Solution

The fourth proportional to 8,960.39, 13,372.81 and 8,727.11 is: 13,024.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,960.39 : 13,372.81 = 8,727.11 : x
  2. Step 2: Convert to fraction form
    8,960.39/13,372.81 = 8,727.11/x
  3. Step 3: Cross multiply
    8,960.39x = 13,372.81 × 8,727.11
  4. Step 4: Simplify right side
    8,960.39x = 116,705,983.88
  5. Step 5: Solve for x
    x = 116,705,983.88/8,960.39
  6. Step 6: Final answer
    x = 13,024.65

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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.