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Finding the Fourth Proportional to 18,290.59, 27,414.71 and 8,409.13

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Solution

The fourth proportional to 18,290.59, 27,414.71 and 8,409.13 is: 12,603.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,290.59 : 27,414.71 = 8,409.13 : x
  2. Step 2: Convert to fraction form
    18,290.59/27,414.71 = 8,409.13/x
  3. Step 3: Cross multiply
    18,290.59x = 27,414.71 × 8,409.13
  4. Step 4: Simplify right side
    18,290.59x = 230,533,749.72
  5. Step 5: Solve for x
    x = 230,533,749.72/18,290.59
  6. Step 6: Final answer
    x = 12,603.96

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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.