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Finding the Fourth Proportional to 8,806.20, 12,155.87 and 5,826.11

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Solution

The fourth proportional to 8,806.20, 12,155.87 and 5,826.11 is: 8,042.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,806.20 : 12,155.87 = 5,826.11 : x
  2. Step 2: Convert to fraction form
    8,806.20/12,155.87 = 5,826.11/x
  3. Step 3: Cross multiply
    8,806.20x = 12,155.87 × 5,826.11
  4. Step 4: Simplify right side
    8,806.20x = 70,821,345.86
  5. Step 5: Solve for x
    x = 70,821,345.86/8,806.20
  6. Step 6: Final answer
    x = 8,042.21

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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.