Home / 13,562.20-20,343.30-11,375.20

Finding the Fourth Proportional to 13,562.20, 20,343.30 and 11,375.20

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Solution

The fourth proportional to 13,562.20, 20,343.30 and 11,375.20 is: 17,062.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,562.20 : 20,343.30 = 11,375.20 : x
  2. Step 2: Convert to fraction form
    13,562.20/20,343.30 = 11,375.20/x
  3. Step 3: Cross multiply
    13,562.20x = 20,343.30 × 11,375.20
  4. Step 4: Simplify right side
    13,562.20x = 231,409,106.16
  5. Step 5: Solve for x
    x = 231,409,106.16/13,562.20
  6. Step 6: Final answer
    x = 17,062.80

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1.5x scale

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.