Home / 19,142.40-28,713.60-5,998.80

Finding the Fourth Proportional to 19,142.40, 28,713.60 and 5,998.80

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Solution

The fourth proportional to 19,142.40, 28,713.60 and 5,998.80 is: 8,998.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,142.40 : 28,713.60 = 5,998.80 : x
  2. Step 2: Convert to fraction form
    19,142.40/28,713.60 = 5,998.80/x
  3. Step 3: Cross multiply
    19,142.40x = 28,713.60 × 5,998.80
  4. Step 4: Simplify right side
    19,142.40x = 172,247,143.68
  5. Step 5: Solve for x
    x = 172,247,143.68/19,142.40
  6. Step 6: Final answer
    x = 8,998.20

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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.