Home / 9,660.70-13,338.17-7,418.55

Finding the Fourth Proportional to 9,660.70, 13,338.17 and 7,418.55

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Solution

The fourth proportional to 9,660.70, 13,338.17 and 7,418.55 is: 10,242.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,660.70 : 13,338.17 = 7,418.55 : x
  2. Step 2: Convert to fraction form
    9,660.70/13,338.17 = 7,418.55/x
  3. Step 3: Cross multiply
    9,660.70x = 13,338.17 × 7,418.55
  4. Step 4: Simplify right side
    9,660.70x = 98,949,921.80
  5. Step 5: Solve for x
    x = 98,949,921.80/9,660.70
  6. Step 6: Final answer
    x = 10,242.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.