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Finding the Fourth Proportional to 15,079.64, 20,796.27 and 9,414.90

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Solution

The fourth proportional to 15,079.64, 20,796.27 and 9,414.90 is: 12,984.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,079.64 : 20,796.27 = 9,414.90 : x
  2. Step 2: Convert to fraction form
    15,079.64/20,796.27 = 9,414.90/x
  3. Step 3: Cross multiply
    15,079.64x = 20,796.27 × 9,414.90
  4. Step 4: Simplify right side
    15,079.64x = 195,794,767.12
  5. Step 5: Solve for x
    x = 195,794,767.12/15,079.64
  6. Step 6: Final answer
    x = 12,984.05

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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.