Home / 8,904.20-13,356.30-5,631.80

Finding the Fourth Proportional to 8,904.20, 13,356.30 and 5,631.80

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Solution

The fourth proportional to 8,904.20, 13,356.30 and 5,631.80 is: 8,447.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,904.20 : 13,356.30 = 5,631.80 : x
  2. Step 2: Convert to fraction form
    8,904.20/13,356.30 = 5,631.80/x
  3. Step 3: Cross multiply
    8,904.20x = 13,356.30 × 5,631.80
  4. Step 4: Simplify right side
    8,904.20x = 75,220,010.34
  5. Step 5: Solve for x
    x = 75,220,010.34/8,904.20
  6. Step 6: Final answer
    x = 8,447.70

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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.