Home / 12,142.26-18,193.26-4,240.53

Finding the Fourth Proportional to 12,142.26, 18,193.26 and 4,240.53

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Solution

The fourth proportional to 12,142.26, 18,193.26 and 4,240.53 is: 6,353.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,142.26 : 18,193.26 = 4,240.53 : x
  2. Step 2: Convert to fraction form
    12,142.26/18,193.26 = 4,240.53/x
  3. Step 3: Cross multiply
    12,142.26x = 18,193.26 × 4,240.53
  4. Step 4: Simplify right side
    12,142.26x = 77,149,064.83
  5. Step 5: Solve for x
    x = 77,149,064.83/12,142.26
  6. Step 6: Final answer
    x = 6,353.76

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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.