Home / 11,375.20-17,080.40-6,191.20

Finding the Fourth Proportional to 11,375.20, 17,080.40 and 6,191.20

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Solution

The fourth proportional to 11,375.20, 17,080.40 and 6,191.20 is: 9,296.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,375.20 : 17,080.40 = 6,191.20 : x
  2. Step 2: Convert to fraction form
    11,375.20/17,080.40 = 6,191.20/x
  3. Step 3: Cross multiply
    11,375.20x = 17,080.40 × 6,191.20
  4. Step 4: Simplify right side
    11,375.20x = 105,748,172.48
  5. Step 5: Solve for x
    x = 105,748,172.48/11,375.20
  6. Step 6: Final answer
    x = 9,296.38

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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.