Home / 18,318.70-27,480.24-6,470.02

Finding the Fourth Proportional to 18,318.70, 27,480.24 and 6,470.02

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Solution

The fourth proportional to 18,318.70, 27,480.24 and 6,470.02 is: 9,705.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,318.70 : 27,480.24 = 6,470.02 : x
  2. Step 2: Convert to fraction form
    18,318.70/27,480.24 = 6,470.02/x
  3. Step 3: Cross multiply
    18,318.70x = 27,480.24 × 6,470.02
  4. Step 4: Simplify right side
    18,318.70x = 177,797,702.40
  5. Step 5: Solve for x
    x = 177,797,702.40/18,318.70
  6. Step 6: Final answer
    x = 9,705.80

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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.