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Finding the Fourth Proportional to 9,179.10, 13,818.60 and 8,362.62

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Solution

The fourth proportional to 9,179.10, 13,818.60 and 8,362.62 is: 12,589.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,179.10 : 13,818.60 = 8,362.62 : x
  2. Step 2: Convert to fraction form
    9,179.10/13,818.60 = 8,362.62/x
  3. Step 3: Cross multiply
    9,179.10x = 13,818.60 × 8,362.62
  4. Step 4: Simplify right side
    9,179.10x = 115,559,700.73
  5. Step 5: Solve for x
    x = 115,559,700.73/9,179.10
  6. Step 6: Final answer
    x = 12,589.44

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.