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Finding the Fourth Proportional to 18,004.59, 27,015.93 and 12,148.92

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Solution

The fourth proportional to 18,004.59, 27,015.93 and 12,148.92 is: 18,229.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,004.59 : 27,015.93 = 12,148.92 : x
  2. Step 2: Convert to fraction form
    18,004.59/27,015.93 = 12,148.92/x
  3. Step 3: Cross multiply
    18,004.59x = 27,015.93 × 12,148.92
  4. Step 4: Simplify right side
    18,004.59x = 328,214,372.30
  5. Step 5: Solve for x
    x = 328,214,372.30/18,004.59
  6. Step 6: Final answer
    x = 18,229.48

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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.