Home / 13,272.24-18,306.32-11,500.72

Finding the Fourth Proportional to 13,272.24, 18,306.32 and 11,500.72

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Solution

The fourth proportional to 13,272.24, 18,306.32 and 11,500.72 is: 15,862.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,272.24 : 18,306.32 = 11,500.72 : x
  2. Step 2: Convert to fraction form
    13,272.24/18,306.32 = 11,500.72/x
  3. Step 3: Cross multiply
    13,272.24x = 18,306.32 × 11,500.72
  4. Step 4: Simplify right side
    13,272.24x = 210,535,860.55
  5. Step 5: Solve for x
    x = 210,535,860.55/13,272.24
  6. Step 6: Final answer
    x = 15,862.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.