Home / 13,348.18-20,022.78-3,988.33

Finding the Fourth Proportional to 13,348.18, 20,022.78 and 3,988.33

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Solution

The fourth proportional to 13,348.18, 20,022.78 and 3,988.33 is: 5,982.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,348.18 : 20,022.78 = 3,988.33 : x
  2. Step 2: Convert to fraction form
    13,348.18/20,022.78 = 3,988.33/x
  3. Step 3: Cross multiply
    13,348.18x = 20,022.78 × 3,988.33
  4. Step 4: Simplify right side
    13,348.18x = 79,857,454.16
  5. Step 5: Solve for x
    x = 79,857,454.16/13,348.18
  6. Step 6: Final answer
    x = 5,982.65

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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.