Home / 12,184.32-18,279.68-4,286.52

Finding the Fourth Proportional to 12,184.32, 18,279.68 and 4,286.52

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Solution

The fourth proportional to 12,184.32, 18,279.68 and 4,286.52 is: 6,430.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,184.32 : 18,279.68 = 4,286.52 : x
  2. Step 2: Convert to fraction form
    12,184.32/18,279.68 = 4,286.52/x
  3. Step 3: Cross multiply
    12,184.32x = 18,279.68 × 4,286.52
  4. Step 4: Simplify right side
    12,184.32x = 78,356,192.48
  5. Step 5: Solve for x
    x = 78,356,192.48/12,184.32
  6. Step 6: Final answer
    x = 6,430.90

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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.