Home / 19,650.45-27,113.41-11,691.12

Finding the Fourth Proportional to 19,650.45, 27,113.41 and 11,691.12

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Solution

The fourth proportional to 19,650.45, 27,113.41 and 11,691.12 is: 16,131.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,650.45 : 27,113.41 = 11,691.12 : x
  2. Step 2: Convert to fraction form
    19,650.45/27,113.41 = 11,691.12/x
  3. Step 3: Cross multiply
    19,650.45x = 27,113.41 × 11,691.12
  4. Step 4: Simplify right side
    19,650.45x = 316,986,129.92
  5. Step 5: Solve for x
    x = 316,986,129.92/19,650.45
  6. Step 6: Final answer
    x = 16,131.24

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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.