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Finding the Fourth Proportional to 18,344.34, 27,512.84 and 8,980.32

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Solution

The fourth proportional to 18,344.34, 27,512.84 and 8,980.32 is: 13,468.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,344.34 : 27,512.84 = 8,980.32 : x
  2. Step 2: Convert to fraction form
    18,344.34/27,512.84 = 8,980.32/x
  3. Step 3: Cross multiply
    18,344.34x = 27,512.84 × 8,980.32
  4. Step 4: Simplify right side
    18,344.34x = 247,074,107.31
  5. Step 5: Solve for x
    x = 247,074,107.31/18,344.34
  6. Step 6: Final answer
    x = 13,468.68

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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.