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Finding the Fourth Proportional to 18,314.70, 27,474.48 and 8,456.19

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Solution

The fourth proportional to 18,314.70, 27,474.48 and 8,456.19 is: 12,685.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,314.70 : 27,474.48 = 8,456.19 : x
  2. Step 2: Convert to fraction form
    18,314.70/27,474.48 = 8,456.19/x
  3. Step 3: Cross multiply
    18,314.70x = 27,474.48 × 8,456.19
  4. Step 4: Simplify right side
    18,314.70x = 232,329,423.03
  5. Step 5: Solve for x
    x = 232,329,423.03/18,314.70
  6. Step 6: Final answer
    x = 12,685.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.