Home / 8,747.76-13,118.40-3,199.20

Finding the Fourth Proportional to 8,747.76, 13,118.40 and 3,199.20

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Solution

The fourth proportional to 8,747.76, 13,118.40 and 3,199.20 is: 4,797.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,747.76 : 13,118.40 = 3,199.20 : x
  2. Step 2: Convert to fraction form
    8,747.76/13,118.40 = 3,199.20/x
  3. Step 3: Cross multiply
    8,747.76x = 13,118.40 × 3,199.20
  4. Step 4: Simplify right side
    8,747.76x = 41,968,385.28
  5. Step 5: Solve for x
    x = 41,968,385.28/8,747.76
  6. Step 6: Final answer
    x = 4,797.62

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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.