Home / 10,982.46-16,480.45-4,317.78

Finding the Fourth Proportional to 10,982.46, 16,480.45 and 4,317.78

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Solution

The fourth proportional to 10,982.46, 16,480.45 and 4,317.78 is: 6,479.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,982.46 : 16,480.45 = 4,317.78 : x
  2. Step 2: Convert to fraction form
    10,982.46/16,480.45 = 4,317.78/x
  3. Step 3: Cross multiply
    10,982.46x = 16,480.45 × 4,317.78
  4. Step 4: Simplify right side
    10,982.46x = 71,158,957.40
  5. Step 5: Solve for x
    x = 71,158,957.40/10,982.46
  6. Step 6: Final answer
    x = 6,479.33

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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.