Home / 12,204.57-18,306.85-11,581.28

Finding the Fourth Proportional to 12,204.57, 18,306.85 and 11,581.28

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Solution

The fourth proportional to 12,204.57, 18,306.85 and 11,581.28 is: 17,371.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,204.57 : 18,306.85 = 11,581.28 : x
  2. Step 2: Convert to fraction form
    12,204.57/18,306.85 = 11,581.28/x
  3. Step 3: Cross multiply
    12,204.57x = 18,306.85 × 11,581.28
  4. Step 4: Simplify right side
    12,204.57x = 212,016,664.23
  5. Step 5: Solve for x
    x = 212,016,664.23/12,204.57
  6. Step 6: Final answer
    x = 17,371.91

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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.