Home / 13,708.80-20,552.40-5,911.20

Finding the Fourth Proportional to 13,708.80, 20,552.40 and 5,911.20

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Solution

The fourth proportional to 13,708.80, 20,552.40 and 5,911.20 is: 8,862.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,708.80 : 20,552.40 = 5,911.20 : x
  2. Step 2: Convert to fraction form
    13,708.80/20,552.40 = 5,911.20/x
  3. Step 3: Cross multiply
    13,708.80x = 20,552.40 × 5,911.20
  4. Step 4: Simplify right side
    13,708.80x = 121,489,346.88
  5. Step 5: Solve for x
    x = 121,489,346.88/13,708.80
  6. Step 6: Final answer
    x = 8,862.14

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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.