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Finding the Fourth Proportional to 12,423.62, 17,127 and 8,880.68

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Solution

The fourth proportional to 12,423.62, 17,127 and 8,880.68 is: 12,242.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,423.62 : 17,127 = 8,880.68 : x
  2. Step 2: Convert to fraction form
    12,423.62/17,127 = 8,880.68/x
  3. Step 3: Cross multiply
    12,423.62x = 17,127 × 8,880.68
  4. Step 4: Simplify right side
    12,423.62x = 152,099,320.73
  5. Step 5: Solve for x
    x = 152,099,320.73/12,423.62
  6. Step 6: Final answer
    x = 12,242.76

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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.