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Finding the Fourth Proportional to 18,844.26, 28,261.44 and 8,963.88

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Solution

The fourth proportional to 18,844.26, 28,261.44 and 8,963.88 is: 13,443.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,844.26 : 28,261.44 = 8,963.88 : x
  2. Step 2: Convert to fraction form
    18,844.26/28,261.44 = 8,963.88/x
  3. Step 3: Cross multiply
    18,844.26x = 28,261.44 × 8,963.88
  4. Step 4: Simplify right side
    18,844.26x = 253,332,156.79
  5. Step 5: Solve for x
    x = 253,332,156.79/18,844.26
  6. Step 6: Final answer
    x = 13,443.47

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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.