Home / 7,419.60-11,121.84-4,132.08

Finding the Fourth Proportional to 7,419.60, 11,121.84 and 4,132.08

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Solution

The fourth proportional to 7,419.60, 11,121.84 and 4,132.08 is: 6,193.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,419.60 : 11,121.84 = 4,132.08 : x
  2. Step 2: Convert to fraction form
    7,419.60/11,121.84 = 4,132.08/x
  3. Step 3: Cross multiply
    7,419.60x = 11,121.84 × 4,132.08
  4. Step 4: Simplify right side
    7,419.60x = 45,956,332.63
  5. Step 5: Solve for x
    x = 45,956,332.63/7,419.60
  6. Step 6: Final answer
    x = 6,193.91

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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.