Home / 14,521.20-21,789-5,755.92

Finding the Fourth Proportional to 14,521.20, 21,789 and 5,755.92

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Solution

The fourth proportional to 14,521.20, 21,789 and 5,755.92 is: 8,636.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,521.20 : 21,789 = 5,755.92 : x
  2. Step 2: Convert to fraction form
    14,521.20/21,789 = 5,755.92/x
  3. Step 3: Cross multiply
    14,521.20x = 21,789 × 5,755.92
  4. Step 4: Simplify right side
    14,521.20x = 125,415,740.88
  5. Step 5: Solve for x
    x = 125,415,740.88/14,521.20
  6. Step 6: Final answer
    x = 8,636.73

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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.