Home / 12,136.14-18,180.88-7,442.46

Finding the Fourth Proportional to 12,136.14, 18,180.88 and 7,442.46

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Solution

The fourth proportional to 12,136.14, 18,180.88 and 7,442.46 is: 11,149.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,136.14 : 18,180.88 = 7,442.46 : x
  2. Step 2: Convert to fraction form
    12,136.14/18,180.88 = 7,442.46/x
  3. Step 3: Cross multiply
    12,136.14x = 18,180.88 × 7,442.46
  4. Step 4: Simplify right side
    12,136.14x = 135,310,472.16
  5. Step 5: Solve for x
    x = 135,310,472.16/12,136.14
  6. Step 6: Final answer
    x = 11,149.38

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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.