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Finding the Fourth Proportional to 8,362.62, 12,470.85 and 7,327.44

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Solution

The fourth proportional to 8,362.62, 12,470.85 and 7,327.44 is: 10,927.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,362.62 : 12,470.85 = 7,327.44 : x
  2. Step 2: Convert to fraction form
    8,362.62/12,470.85 = 7,327.44/x
  3. Step 3: Cross multiply
    8,362.62x = 12,470.85 × 7,327.44
  4. Step 4: Simplify right side
    8,362.62x = 91,379,405.12
  5. Step 5: Solve for x
    x = 91,379,405.12/8,362.62
  6. Step 6: Final answer
    x = 10,927.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.