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Finding the Fourth Proportional to 14,855.27, 20,494.01 and 9,180.18

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Solution

The fourth proportional to 14,855.27, 20,494.01 and 9,180.18 is: 12,664.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,855.27 : 20,494.01 = 9,180.18 : x
  2. Step 2: Convert to fraction form
    14,855.27/20,494.01 = 9,180.18/x
  3. Step 3: Cross multiply
    14,855.27x = 20,494.01 × 9,180.18
  4. Step 4: Simplify right side
    14,855.27x = 188,138,709.26
  5. Step 5: Solve for x
    x = 188,138,709.26/14,855.27
  6. Step 6: Final answer
    x = 12,664.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.