Home / 8,972.16-13,456.20-3,705.84

Finding the Fourth Proportional to 8,972.16, 13,456.20 and 3,705.84

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Solution

The fourth proportional to 8,972.16, 13,456.20 and 3,705.84 is: 5,557.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,972.16 : 13,456.20 = 3,705.84 : x
  2. Step 2: Convert to fraction form
    8,972.16/13,456.20 = 3,705.84/x
  3. Step 3: Cross multiply
    8,972.16x = 13,456.20 × 3,705.84
  4. Step 4: Simplify right side
    8,972.16x = 49,866,524.21
  5. Step 5: Solve for x
    x = 49,866,524.21/8,972.16
  6. Step 6: Final answer
    x = 5,557.92

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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.