Home / 6,660.15-9,990.23-3,738.39

Finding the Fourth Proportional to 6,660.15, 9,990.23 and 3,738.39

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Solution

The fourth proportional to 6,660.15, 9,990.23 and 3,738.39 is: 5,607.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,660.15 : 9,990.23 = 3,738.39 : x
  2. Step 2: Convert to fraction form
    6,660.15/9,990.23 = 3,738.39/x
  3. Step 3: Cross multiply
    6,660.15x = 9,990.23 × 3,738.39
  4. Step 4: Simplify right side
    6,660.15x = 37,347,357.24
  5. Step 5: Solve for x
    x = 37,347,357.24/6,660.15
  6. Step 6: Final answer
    x = 5,607.59

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Double scale
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Similar ratio
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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.