Home / 7,660.85-11,481.99-5,436.18

Finding the Fourth Proportional to 7,660.85, 11,481.99 and 5,436.18

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Solution

The fourth proportional to 7,660.85, 11,481.99 and 5,436.18 is: 8,147.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,660.85 : 11,481.99 = 5,436.18 : x
  2. Step 2: Convert to fraction form
    7,660.85/11,481.99 = 5,436.18/x
  3. Step 3: Cross multiply
    7,660.85x = 11,481.99 × 5,436.18
  4. Step 4: Simplify right side
    7,660.85x = 62,418,164.40
  5. Step 5: Solve for x
    x = 62,418,164.40/7,660.85
  6. Step 6: Final answer
    x = 8,147.69

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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.