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Finding the Fourth Proportional to 8,807.86, 13,189.88 and 6,162.99

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Solution

The fourth proportional to 8,807.86, 13,189.88 and 6,162.99 is: 9,229.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,807.86 : 13,189.88 = 6,162.99 : x
  2. Step 2: Convert to fraction form
    8,807.86/13,189.88 = 6,162.99/x
  3. Step 3: Cross multiply
    8,807.86x = 13,189.88 × 6,162.99
  4. Step 4: Simplify right side
    8,807.86x = 81,289,098.54
  5. Step 5: Solve for x
    x = 81,289,098.54/8,807.86
  6. Step 6: Final answer
    x = 9,229.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.