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Finding the Fourth Proportional to 18,396, 27,594.54 and 5,917.29

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Solution

The fourth proportional to 18,396, 27,594.54 and 5,917.29 is: 8,876.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,396 : 27,594.54 = 5,917.29 : x
  2. Step 2: Convert to fraction form
    18,396/27,594.54 = 5,917.29/x
  3. Step 3: Cross multiply
    18,396x = 27,594.54 × 5,917.29
  4. Step 4: Simplify right side
    18,396x = 163,284,895.60
  5. Step 5: Solve for x
    x = 163,284,895.60/18,396
  6. Step 6: Final answer
    x = 8,876.11

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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.