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Finding the Fourth Proportional to 12,511.70, 18,767.53 and 5,934.29

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Solution

The fourth proportional to 12,511.70, 18,767.53 and 5,934.29 is: 8,901.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,511.70 : 18,767.53 = 5,934.29 : x
  2. Step 2: Convert to fraction form
    12,511.70/18,767.53 = 5,934.29/x
  3. Step 3: Cross multiply
    12,511.70x = 18,767.53 × 5,934.29
  4. Step 4: Simplify right side
    12,511.70x = 111,371,965.60
  5. Step 5: Solve for x
    x = 111,371,965.60/12,511.70
  6. Step 6: Final answer
    x = 8,901.43

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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.