Home / 15,180.58-22,781.16-5,320

Finding the Fourth Proportional to 15,180.58, 22,781.16 and 5,320

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Solution

The fourth proportional to 15,180.58, 22,781.16 and 5,320 is: 7,983.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,180.58 : 22,781.16 = 5,320 : x
  2. Step 2: Convert to fraction form
    15,180.58/22,781.16 = 5,320/x
  3. Step 3: Cross multiply
    15,180.58x = 22,781.16 × 5,320
  4. Step 4: Simplify right side
    15,180.58x = 121,195,771.20
  5. Step 5: Solve for x
    x = 121,195,771.20/15,180.58
  6. Step 6: Final answer
    x = 7,983.61

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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.