Home / 12,211.76-18,317.66-4,418.76

Finding the Fourth Proportional to 12,211.76, 18,317.66 and 4,418.76

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Solution

The fourth proportional to 12,211.76, 18,317.66 and 4,418.76 is: 6,628.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,211.76 : 18,317.66 = 4,418.76 : x
  2. Step 2: Convert to fraction form
    12,211.76/18,317.66 = 4,418.76/x
  3. Step 3: Cross multiply
    12,211.76x = 18,317.66 × 4,418.76
  4. Step 4: Simplify right side
    12,211.76x = 80,941,343.30
  5. Step 5: Solve for x
    x = 80,941,343.30/12,211.76
  6. Step 6: Final answer
    x = 6,628.15

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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.