Home / 12,202.20-18,266.85-7,269.30

Finding the Fourth Proportional to 12,202.20, 18,266.85 and 7,269.30

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Solution

The fourth proportional to 12,202.20, 18,266.85 and 7,269.30 is: 10,882.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,202.20 : 18,266.85 = 7,269.30 : x
  2. Step 2: Convert to fraction form
    12,202.20/18,266.85 = 7,269.30/x
  3. Step 3: Cross multiply
    12,202.20x = 18,266.85 × 7,269.30
  4. Step 4: Simplify right side
    12,202.20x = 132,787,212.71
  5. Step 5: Solve for x
    x = 132,787,212.71/12,202.20
  6. Step 6: Final answer
    x = 10,882.24

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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.