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Finding the Fourth Proportional to 18,853.73, 28,281 and 5,706.08

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Solution

The fourth proportional to 18,853.73, 28,281 and 5,706.08 is: 8,559.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,853.73 : 28,281 = 5,706.08 : x
  2. Step 2: Convert to fraction form
    18,853.73/28,281 = 5,706.08/x
  3. Step 3: Cross multiply
    18,853.73x = 28,281 × 5,706.08
  4. Step 4: Simplify right side
    18,853.73x = 161,373,648.48
  5. Step 5: Solve for x
    x = 161,373,648.48/18,853.73
  6. Step 6: Final answer
    x = 8,559.24

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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.