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Finding the Fourth Proportional to 18,585.18, 27,890.73 and 8,191.26

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Solution

The fourth proportional to 18,585.18, 27,890.73 and 8,191.26 is: 12,292.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,585.18 : 27,890.73 = 8,191.26 : x
  2. Step 2: Convert to fraction form
    18,585.18/27,890.73 = 8,191.26/x
  3. Step 3: Cross multiply
    18,585.18x = 27,890.73 × 8,191.26
  4. Step 4: Simplify right side
    18,585.18x = 228,460,221.02
  5. Step 5: Solve for x
    x = 228,460,221.02/18,585.18
  6. Step 6: Final answer
    x = 12,292.60

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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.