Home / 12,117.06-18,176.13-3,351.78

Finding the Fourth Proportional to 12,117.06, 18,176.13 and 3,351.78

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Solution

The fourth proportional to 12,117.06, 18,176.13 and 3,351.78 is: 5,027.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,117.06 : 18,176.13 = 3,351.78 : x
  2. Step 2: Convert to fraction form
    12,117.06/18,176.13 = 3,351.78/x
  3. Step 3: Cross multiply
    12,117.06x = 18,176.13 × 3,351.78
  4. Step 4: Simplify right side
    12,117.06x = 60,922,389.01
  5. Step 5: Solve for x
    x = 60,922,389.01/12,117.06
  6. Step 6: Final answer
    x = 5,027.82

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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.