Home / 10,388.55-15,582.85-4,149.07

Finding the Fourth Proportional to 10,388.55, 15,582.85 and 4,149.07

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Solution

The fourth proportional to 10,388.55, 15,582.85 and 4,149.07 is: 6,223.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,388.55 : 15,582.85 = 4,149.07 : x
  2. Step 2: Convert to fraction form
    10,388.55/15,582.85 = 4,149.07/x
  3. Step 3: Cross multiply
    10,388.55x = 15,582.85 × 4,149.07
  4. Step 4: Simplify right side
    10,388.55x = 64,654,335.45
  5. Step 5: Solve for x
    x = 64,654,335.45/10,388.55
  6. Step 6: Final answer
    x = 6,223.61

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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.