Home / 8,671.80-13,016.34-4,778.04

Finding the Fourth Proportional to 8,671.80, 13,016.34 and 4,778.04

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Solution

The fourth proportional to 8,671.80, 13,016.34 and 4,778.04 is: 7,171.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,671.80 : 13,016.34 = 4,778.04 : x
  2. Step 2: Convert to fraction form
    8,671.80/13,016.34 = 4,778.04/x
  3. Step 3: Cross multiply
    8,671.80x = 13,016.34 × 4,778.04
  4. Step 4: Simplify right side
    8,671.80x = 62,192,593.17
  5. Step 5: Solve for x
    x = 62,192,593.17/8,671.80
  6. Step 6: Final answer
    x = 7,171.82

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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.