Home / 10,979.40-16,470.70-3,584.20

Finding the Fourth Proportional to 10,979.40, 16,470.70 and 3,584.20

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Solution

The fourth proportional to 10,979.40, 16,470.70 and 3,584.20 is: 5,376.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,979.40 : 16,470.70 = 3,584.20 : x
  2. Step 2: Convert to fraction form
    10,979.40/16,470.70 = 3,584.20/x
  3. Step 3: Cross multiply
    10,979.40x = 16,470.70 × 3,584.20
  4. Step 4: Simplify right side
    10,979.40x = 59,034,282.94
  5. Step 5: Solve for x
    x = 59,034,282.94/10,979.40
  6. Step 6: Final answer
    x = 5,376.82

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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.