Home / 12,077.92-18,087.62-6,139.18

Finding the Fourth Proportional to 12,077.92, 18,087.62 and 6,139.18

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Solution

The fourth proportional to 12,077.92, 18,087.62 and 6,139.18 is: 9,193.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,077.92 : 18,087.62 = 6,139.18 : x
  2. Step 2: Convert to fraction form
    12,077.92/18,087.62 = 6,139.18/x
  3. Step 3: Cross multiply
    12,077.92x = 18,087.62 × 6,139.18
  4. Step 4: Simplify right side
    12,077.92x = 111,043,154.95
  5. Step 5: Solve for x
    x = 111,043,154.95/12,077.92
  6. Step 6: Final answer
    x = 9,193.90

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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.