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Finding the Fourth Proportional to 12,510.94, 17,255.48 and 8,732.90

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Solution

The fourth proportional to 12,510.94, 17,255.48 and 8,732.90 is: 12,044.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,510.94 : 17,255.48 = 8,732.90 : x
  2. Step 2: Convert to fraction form
    12,510.94/17,255.48 = 8,732.90/x
  3. Step 3: Cross multiply
    12,510.94x = 17,255.48 × 8,732.90
  4. Step 4: Simplify right side
    12,510.94x = 150,690,381.29
  5. Step 5: Solve for x
    x = 150,690,381.29/12,510.94
  6. Step 6: Final answer
    x = 12,044.69

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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.