Home / 15,387.52-23,062.56-7,987.96

Finding the Fourth Proportional to 15,387.52, 23,062.56 and 7,987.96

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Solution

The fourth proportional to 15,387.52, 23,062.56 and 7,987.96 is: 11,972.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,387.52 : 23,062.56 = 7,987.96 : x
  2. Step 2: Convert to fraction form
    15,387.52/23,062.56 = 7,987.96/x
  3. Step 3: Cross multiply
    15,387.52x = 23,062.56 × 7,987.96
  4. Step 4: Simplify right side
    15,387.52x = 184,222,806.78
  5. Step 5: Solve for x
    x = 184,222,806.78/15,387.52
  6. Step 6: Final answer
    x = 11,972.22

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1.5x scale

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.