Home / 13,272.24-18,324.24-8,243.74

Finding the Fourth Proportional to 13,272.24, 18,324.24 and 8,243.74

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Solution

The fourth proportional to 13,272.24, 18,324.24 and 8,243.74 is: 11,381.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,272.24 : 18,324.24 = 8,243.74 : x
  2. Step 2: Convert to fraction form
    13,272.24/18,324.24 = 8,243.74/x
  3. Step 3: Cross multiply
    13,272.24x = 18,324.24 × 8,243.74
  4. Step 4: Simplify right side
    13,272.24x = 151,060,137.42
  5. Step 5: Solve for x
    x = 151,060,137.42/13,272.24
  6. Step 6: Final answer
    x = 11,381.66

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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.