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Finding the Fourth Proportional to 14,884.11, 20,540.08 and 8,919.24

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Solution

The fourth proportional to 14,884.11, 20,540.08 and 8,919.24 is: 12,308.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,884.11 : 20,540.08 = 8,919.24 : x
  2. Step 2: Convert to fraction form
    14,884.11/20,540.08 = 8,919.24/x
  3. Step 3: Cross multiply
    14,884.11x = 20,540.08 × 8,919.24
  4. Step 4: Simplify right side
    14,884.11x = 183,201,800.44
  5. Step 5: Solve for x
    x = 183,201,800.44/14,884.11
  6. Step 6: Final answer
    x = 12,308.55

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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.