Home / 12,219.29-18,325.27-6,372.71

Finding the Fourth Proportional to 12,219.29, 18,325.27 and 6,372.71

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Solution

The fourth proportional to 12,219.29, 18,325.27 and 6,372.71 is: 9,557.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,219.29 : 18,325.27 = 6,372.71 : x
  2. Step 2: Convert to fraction form
    12,219.29/18,325.27 = 6,372.71/x
  3. Step 3: Cross multiply
    12,219.29x = 18,325.27 × 6,372.71
  4. Step 4: Simplify right side
    12,219.29x = 116,781,631.38
  5. Step 5: Solve for x
    x = 116,781,631.38/12,219.29
  6. Step 6: Final answer
    x = 9,557.15

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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.