Home / 15,872.60-23,812.34-4,778.43

Finding the Fourth Proportional to 15,872.60, 23,812.34 and 4,778.43

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Solution

The fourth proportional to 15,872.60, 23,812.34 and 4,778.43 is: 7,168.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,872.60 : 23,812.34 = 4,778.43 : x
  2. Step 2: Convert to fraction form
    15,872.60/23,812.34 = 4,778.43/x
  3. Step 3: Cross multiply
    15,872.60x = 23,812.34 × 4,778.43
  4. Step 4: Simplify right side
    15,872.60x = 113,785,575.93
  5. Step 5: Solve for x
    x = 113,785,575.93/15,872.60
  6. Step 6: Final answer
    x = 7,168.68

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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.