Home / 12,211.11-18,314.61-3,443.97

Finding the Fourth Proportional to 12,211.11, 18,314.61 and 3,443.97

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Solution

The fourth proportional to 12,211.11, 18,314.61 and 3,443.97 is: 5,165.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,211.11 : 18,314.61 = 3,443.97 : x
  2. Step 2: Convert to fraction form
    12,211.11/18,314.61 = 3,443.97/x
  3. Step 3: Cross multiply
    12,211.11x = 18,314.61 × 3,443.97
  4. Step 4: Simplify right side
    12,211.11x = 63,074,967.40
  5. Step 5: Solve for x
    x = 63,074,967.40/12,211.11
  6. Step 6: Final answer
    x = 5,165.38

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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.