Home / 12,279.57-18,444.87-11,951.52

Finding the Fourth Proportional to 12,279.57, 18,444.87 and 11,951.52

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Solution

The fourth proportional to 12,279.57, 18,444.87 and 11,951.52 is: 17,952.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,279.57 : 18,444.87 = 11,951.52 : x
  2. Step 2: Convert to fraction form
    12,279.57/18,444.87 = 11,951.52/x
  3. Step 3: Cross multiply
    12,279.57x = 18,444.87 × 11,951.52
  4. Step 4: Simplify right side
    12,279.57x = 220,444,232.70
  5. Step 5: Solve for x
    x = 220,444,232.70/12,279.57
  6. Step 6: Final answer
    x = 17,952.11

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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.