Home / 12,136.11-18,204.18-6,938.34

Finding the Fourth Proportional to 12,136.11, 18,204.18 and 6,938.34

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Solution

The fourth proportional to 12,136.11, 18,204.18 and 6,938.34 is: 10,407.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,136.11 : 18,204.18 = 6,938.34 : x
  2. Step 2: Convert to fraction form
    12,136.11/18,204.18 = 6,938.34/x
  3. Step 3: Cross multiply
    12,136.11x = 18,204.18 × 6,938.34
  4. Step 4: Simplify right side
    12,136.11x = 126,306,790.26
  5. Step 5: Solve for x
    x = 126,306,790.26/12,136.11
  6. Step 6: Final answer
    x = 10,407.52

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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.