Home / 12,218.29-18,323.78-6,371.71

Finding the Fourth Proportional to 12,218.29, 18,323.78 and 6,371.71

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Solution

The fourth proportional to 12,218.29, 18,323.78 and 6,371.71 is: 9,555.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,218.29 : 18,323.78 = 6,371.71 : x
  2. Step 2: Convert to fraction form
    12,218.29/18,323.78 = 6,371.71/x
  3. Step 3: Cross multiply
    12,218.29x = 18,323.78 × 6,371.71
  4. Step 4: Simplify right side
    12,218.29x = 116,753,734.60
  5. Step 5: Solve for x
    x = 116,753,734.60/12,218.29
  6. Step 6: Final answer
    x = 9,555.65

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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.