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Finding the Fourth Proportional to 12,660.14, 17,476.50 and 8,701.68

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Solution

The fourth proportional to 12,660.14, 17,476.50 and 8,701.68 is: 12,012.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,660.14 : 17,476.50 = 8,701.68 : x
  2. Step 2: Convert to fraction form
    12,660.14/17,476.50 = 8,701.68/x
  3. Step 3: Cross multiply
    12,660.14x = 17,476.50 × 8,701.68
  4. Step 4: Simplify right side
    12,660.14x = 152,074,910.52
  5. Step 5: Solve for x
    x = 152,074,910.52/12,660.14
  6. Step 6: Final answer
    x = 12,012.10

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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.