Home / 10,982.30-16,469.40-5,433.80

Finding the Fourth Proportional to 10,982.30, 16,469.40 and 5,433.80

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Solution

The fourth proportional to 10,982.30, 16,469.40 and 5,433.80 is: 8,148.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,982.30 : 16,469.40 = 5,433.80 : x
  2. Step 2: Convert to fraction form
    10,982.30/16,469.40 = 5,433.80/x
  3. Step 3: Cross multiply
    10,982.30x = 16,469.40 × 5,433.80
  4. Step 4: Simplify right side
    10,982.30x = 89,491,425.72
  5. Step 5: Solve for x
    x = 89,491,425.72/10,982.30
  6. Step 6: Final answer
    x = 8,148.70

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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.