Home / 12,147.13-16,761.81-8,962.17

Finding the Fourth Proportional to 12,147.13, 16,761.81 and 8,962.17

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Solution

The fourth proportional to 12,147.13, 16,761.81 and 8,962.17 is: 12,366.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,147.13 : 16,761.81 = 8,962.17 : x
  2. Step 2: Convert to fraction form
    12,147.13/16,761.81 = 8,962.17/x
  3. Step 3: Cross multiply
    12,147.13x = 16,761.81 × 8,962.17
  4. Step 4: Simplify right side
    12,147.13x = 150,222,190.73
  5. Step 5: Solve for x
    x = 150,222,190.73/12,147.13
  6. Step 6: Final answer
    x = 12,366.89

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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.