Home / 12,452.36-18,681.42-4,131.76

Finding the Fourth Proportional to 12,452.36, 18,681.42 and 4,131.76

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Solution

The fourth proportional to 12,452.36, 18,681.42 and 4,131.76 is: 6,198.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,452.36 : 18,681.42 = 4,131.76 : x
  2. Step 2: Convert to fraction form
    12,452.36/18,681.42 = 4,131.76/x
  3. Step 3: Cross multiply
    12,452.36x = 18,681.42 × 4,131.76
  4. Step 4: Simplify right side
    12,452.36x = 77,187,143.90
  5. Step 5: Solve for x
    x = 77,187,143.90/12,452.36
  6. Step 6: Final answer
    x = 6,198.60

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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.