Home / 12,398.45-18,600.41-4,081.02

Finding the Fourth Proportional to 12,398.45, 18,600.41 and 4,081.02

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Solution

The fourth proportional to 12,398.45, 18,600.41 and 4,081.02 is: 6,122.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,398.45 : 18,600.41 = 4,081.02 : x
  2. Step 2: Convert to fraction form
    12,398.45/18,600.41 = 4,081.02/x
  3. Step 3: Cross multiply
    12,398.45x = 18,600.41 × 4,081.02
  4. Step 4: Simplify right side
    12,398.45x = 75,908,624.81
  5. Step 5: Solve for x
    x = 75,908,624.81/12,398.45
  6. Step 6: Final answer
    x = 6,122.43

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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.