Home / 15,915.68-23,873.52-7,149.92

Finding the Fourth Proportional to 15,915.68, 23,873.52 and 7,149.92

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Solution

The fourth proportional to 15,915.68, 23,873.52 and 7,149.92 is: 10,724.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,915.68 : 23,873.52 = 7,149.92 : x
  2. Step 2: Convert to fraction form
    15,915.68/23,873.52 = 7,149.92/x
  3. Step 3: Cross multiply
    15,915.68x = 23,873.52 × 7,149.92
  4. Step 4: Simplify right side
    15,915.68x = 170,693,758.12
  5. Step 5: Solve for x
    x = 170,693,758.12/15,915.68
  6. Step 6: Final answer
    x = 10,724.88

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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.