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Finding the Fourth Proportional to 8,287.44, 12,426.88 and 2,443.32

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Solution

The fourth proportional to 8,287.44, 12,426.88 and 2,443.32 is: 3,663.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,287.44 : 12,426.88 = 2,443.32 : x
  2. Step 2: Convert to fraction form
    8,287.44/12,426.88 = 2,443.32/x
  3. Step 3: Cross multiply
    8,287.44x = 12,426.88 × 2,443.32
  4. Step 4: Simplify right side
    8,287.44x = 30,362,844.44
  5. Step 5: Solve for x
    x = 30,362,844.44/8,287.44
  6. Step 6: Final answer
    x = 3,663.72

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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.