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Finding the Fourth Proportional to 8,423.83, 12,549.29 and 8,044.75

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Solution

The fourth proportional to 8,423.83, 12,549.29 and 8,044.75 is: 11,984.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,423.83 : 12,549.29 = 8,044.75 : x
  2. Step 2: Convert to fraction form
    8,423.83/12,549.29 = 8,044.75/x
  3. Step 3: Cross multiply
    8,423.83x = 12,549.29 × 8,044.75
  4. Step 4: Simplify right side
    8,423.83x = 100,955,900.73
  5. Step 5: Solve for x
    x = 100,955,900.73/8,423.83
  6. Step 6: Final answer
    x = 11,984.56

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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.