Home / 12,601.45-18,902.22-5,105.15

Finding the Fourth Proportional to 12,601.45, 18,902.22 and 5,105.15

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Solution

The fourth proportional to 12,601.45, 18,902.22 and 5,105.15 is: 7,657.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,601.45 : 18,902.22 = 5,105.15 : x
  2. Step 2: Convert to fraction form
    12,601.45/18,902.22 = 5,105.15/x
  3. Step 3: Cross multiply
    12,601.45x = 18,902.22 × 5,105.15
  4. Step 4: Simplify right side
    12,601.45x = 96,498,703.20
  5. Step 5: Solve for x
    x = 96,498,703.20/12,601.45
  6. Step 6: Final answer
    x = 7,657.75

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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.