Home / 15,330.45-22,987-5,330.60

Finding the Fourth Proportional to 15,330.45, 22,987 and 5,330.60

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Solution

The fourth proportional to 15,330.45, 22,987 and 5,330.60 is: 7,992.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,330.45 : 22,987 = 5,330.60 : x
  2. Step 2: Convert to fraction form
    15,330.45/22,987 = 5,330.60/x
  3. Step 3: Cross multiply
    15,330.45x = 22,987 × 5,330.60
  4. Step 4: Simplify right side
    15,330.45x = 122,534,502.20
  5. Step 5: Solve for x
    x = 122,534,502.20/15,330.45
  6. Step 6: Final answer
    x = 7,992.88

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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.