Home / 15,542.11-21,447.38-8,826.86

Finding the Fourth Proportional to 15,542.11, 21,447.38 and 8,826.86

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Solution

The fourth proportional to 15,542.11, 21,447.38 and 8,826.86 is: 12,180.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,542.11 : 21,447.38 = 8,826.86 : x
  2. Step 2: Convert to fraction form
    15,542.11/21,447.38 = 8,826.86/x
  3. Step 3: Cross multiply
    15,542.11x = 21,447.38 × 8,826.86
  4. Step 4: Simplify right side
    15,542.11x = 189,312,976.49
  5. Step 5: Solve for x
    x = 189,312,976.49/15,542.11
  6. Step 6: Final answer
    x = 12,180.65

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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.