Home / 7,419.55-11,129.55-3,257.42

Finding the Fourth Proportional to 7,419.55, 11,129.55 and 3,257.42

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Solution

The fourth proportional to 7,419.55, 11,129.55 and 3,257.42 is: 4,886.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,419.55 : 11,129.55 = 3,257.42 : x
  2. Step 2: Convert to fraction form
    7,419.55/11,129.55 = 3,257.42/x
  3. Step 3: Cross multiply
    7,419.55x = 11,129.55 × 3,257.42
  4. Step 4: Simplify right side
    7,419.55x = 36,253,569.22
  5. Step 5: Solve for x
    x = 36,253,569.22/7,419.55
  6. Step 6: Final answer
    x = 4,886.22

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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.