Home / 13,452.57-20,182.08-4,218.57

Finding the Fourth Proportional to 13,452.57, 20,182.08 and 4,218.57

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Solution

The fourth proportional to 13,452.57, 20,182.08 and 4,218.57 is: 6,328.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,452.57 : 20,182.08 = 4,218.57 : x
  2. Step 2: Convert to fraction form
    13,452.57/20,182.08 = 4,218.57/x
  3. Step 3: Cross multiply
    13,452.57x = 20,182.08 × 4,218.57
  4. Step 4: Simplify right side
    13,452.57x = 85,139,517.23
  5. Step 5: Solve for x
    x = 85,139,517.23/13,452.57
  6. Step 6: Final answer
    x = 6,328.87

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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.