Home / 11,419.20-17,129.34-3,527.10

Finding the Fourth Proportional to 11,419.20, 17,129.34 and 3,527.10

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Solution

The fourth proportional to 11,419.20, 17,129.34 and 3,527.10 is: 5,290.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,419.20 : 17,129.34 = 3,527.10 : x
  2. Step 2: Convert to fraction form
    11,419.20/17,129.34 = 3,527.10/x
  3. Step 3: Cross multiply
    11,419.20x = 17,129.34 × 3,527.10
  4. Step 4: Simplify right side
    11,419.20x = 60,416,895.11
  5. Step 5: Solve for x
    x = 60,416,895.11/11,419.20
  6. Step 6: Final answer
    x = 5,290.82

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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.