Home / 13,912.92-20,876.18-6,120.76

Finding the Fourth Proportional to 13,912.92, 20,876.18 and 6,120.76

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Solution

The fourth proportional to 13,912.92, 20,876.18 and 6,120.76 is: 9,184.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,912.92 : 20,876.18 = 6,120.76 : x
  2. Step 2: Convert to fraction form
    13,912.92/20,876.18 = 6,120.76/x
  3. Step 3: Cross multiply
    13,912.92x = 20,876.18 × 6,120.76
  4. Step 4: Simplify right side
    13,912.92x = 127,778,087.50
  5. Step 5: Solve for x
    x = 127,778,087.50/13,912.92
  6. Step 6: Final answer
    x = 9,184.13

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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.