Home / 9,521.92-14,279.20-3,977.88

Finding the Fourth Proportional to 9,521.92, 14,279.20 and 3,977.88

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Solution

The fourth proportional to 9,521.92, 14,279.20 and 3,977.88 is: 5,965.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,521.92 : 14,279.20 = 3,977.88 : x
  2. Step 2: Convert to fraction form
    9,521.92/14,279.20 = 3,977.88/x
  3. Step 3: Cross multiply
    9,521.92x = 14,279.20 × 3,977.88
  4. Step 4: Simplify right side
    9,521.92x = 56,800,944.10
  5. Step 5: Solve for x
    x = 56,800,944.10/9,521.92
  6. Step 6: Final answer
    x = 5,965.28

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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.