Home / 12,882.12-19,323.18-4,117.80

Finding the Fourth Proportional to 12,882.12, 19,323.18 and 4,117.80

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Solution

The fourth proportional to 12,882.12, 19,323.18 and 4,117.80 is: 6,176.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,882.12 : 19,323.18 = 4,117.80 : x
  2. Step 2: Convert to fraction form
    12,882.12/19,323.18 = 4,117.80/x
  3. Step 3: Cross multiply
    12,882.12x = 19,323.18 × 4,117.80
  4. Step 4: Simplify right side
    12,882.12x = 79,568,990.60
  5. Step 5: Solve for x
    x = 79,568,990.60/12,882.12
  6. Step 6: Final answer
    x = 6,176.70

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Double scale
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Similar ratio
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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.