Home / 12,099.74-18,146.16-5,081.34

Finding the Fourth Proportional to 12,099.74, 18,146.16 and 5,081.34

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Solution

The fourth proportional to 12,099.74, 18,146.16 and 5,081.34 is: 7,620.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,099.74 : 18,146.16 = 5,081.34 : x
  2. Step 2: Convert to fraction form
    12,099.74/18,146.16 = 5,081.34/x
  3. Step 3: Cross multiply
    12,099.74x = 18,146.16 × 5,081.34
  4. Step 4: Simplify right side
    12,099.74x = 92,206,717.92
  5. Step 5: Solve for x
    x = 92,206,717.92/12,099.74
  6. Step 6: Final answer
    x = 7,620.55

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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.