Home / 8,958.72-13,432.44-3,115.80

Finding the Fourth Proportional to 8,958.72, 13,432.44 and 3,115.80

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Solution

The fourth proportional to 8,958.72, 13,432.44 and 3,115.80 is: 4,671.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,958.72 : 13,432.44 = 3,115.80 : x
  2. Step 2: Convert to fraction form
    8,958.72/13,432.44 = 3,115.80/x
  3. Step 3: Cross multiply
    8,958.72x = 13,432.44 × 3,115.80
  4. Step 4: Simplify right side
    8,958.72x = 41,852,796.55
  5. Step 5: Solve for x
    x = 41,852,796.55/8,958.72
  6. Step 6: Final answer
    x = 4,671.74

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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.