Home / 15,909.63-23,864.49-5,379.73

Finding the Fourth Proportional to 15,909.63, 23,864.49 and 5,379.73

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Solution

The fourth proportional to 15,909.63, 23,864.49 and 5,379.73 is: 8,069.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,909.63 : 23,864.49 = 5,379.73 : x
  2. Step 2: Convert to fraction form
    15,909.63/23,864.49 = 5,379.73/x
  3. Step 3: Cross multiply
    15,909.63x = 23,864.49 × 5,379.73
  4. Step 4: Simplify right side
    15,909.63x = 128,384,512.79
  5. Step 5: Solve for x
    x = 128,384,512.79/15,909.63
  6. Step 6: Final answer
    x = 8,069.61

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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.