Home / 10,982.21-15,149.27-6,947.79

Finding the Fourth Proportional to 10,982.21, 15,149.27 and 6,947.79

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Solution

The fourth proportional to 10,982.21, 15,149.27 and 6,947.79 is: 9,584.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,982.21 : 15,149.27 = 6,947.79 : x
  2. Step 2: Convert to fraction form
    10,982.21/15,149.27 = 6,947.79/x
  3. Step 3: Cross multiply
    10,982.21x = 15,149.27 × 6,947.79
  4. Step 4: Simplify right side
    10,982.21x = 105,253,911.87
  5. Step 5: Solve for x
    x = 105,253,911.87/10,982.21
  6. Step 6: Final answer
    x = 9,584.04

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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.