Home / 7,490.75-11,179.17-6,660.41

Finding the Fourth Proportional to 7,490.75, 11,179.17 and 6,660.41

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Solution

The fourth proportional to 7,490.75, 11,179.17 and 6,660.41 is: 9,939.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,490.75 : 11,179.17 = 6,660.41 : x
  2. Step 2: Convert to fraction form
    7,490.75/11,179.17 = 6,660.41/x
  3. Step 3: Cross multiply
    7,490.75x = 11,179.17 × 6,660.41
  4. Step 4: Simplify right side
    7,490.75x = 74,457,766.46
  5. Step 5: Solve for x
    x = 74,457,766.46/7,490.75
  6. Step 6: Final answer
    x = 9,939.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.