Home / 15,919.64-23,871.24-7,147.04

Finding the Fourth Proportional to 15,919.64, 23,871.24 and 7,147.04

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Solution

The fourth proportional to 15,919.64, 23,871.24 and 7,147.04 is: 10,716.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,919.64 : 23,871.24 = 7,147.04 : x
  2. Step 2: Convert to fraction form
    15,919.64/23,871.24 = 7,147.04/x
  3. Step 3: Cross multiply
    15,919.64x = 23,871.24 × 7,147.04
  4. Step 4: Simplify right side
    15,919.64x = 170,608,587.77
  5. Step 5: Solve for x
    x = 170,608,587.77/15,919.64
  6. Step 6: Final answer
    x = 10,716.87

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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.