Home / 12,110.92-18,060.39-12,000.20

Finding the Fourth Proportional to 12,110.92, 18,060.39 and 12,000.20

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Solution

The fourth proportional to 12,110.92, 18,060.39 and 12,000.20 is: 17,895.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,110.92 : 18,060.39 = 12,000.20 : x
  2. Step 2: Convert to fraction form
    12,110.92/18,060.39 = 12,000.20/x
  3. Step 3: Cross multiply
    12,110.92x = 18,060.39 × 12,000.20
  4. Step 4: Simplify right side
    12,110.92x = 216,728,201.78
  5. Step 5: Solve for x
    x = 216,728,201.78/12,110.92
  6. Step 6: Final answer
    x = 17,895.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.