Home / 18,327.28-27,490.86-12,469.36

Finding the Fourth Proportional to 18,327.28, 27,490.86 and 12,469.36

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Solution

The fourth proportional to 18,327.28, 27,490.86 and 12,469.36 is: 18,704.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,327.28 : 27,490.86 = 12,469.36 : x
  2. Step 2: Convert to fraction form
    18,327.28/27,490.86 = 12,469.36/x
  3. Step 3: Cross multiply
    18,327.28x = 27,490.86 × 12,469.36
  4. Step 4: Simplify right side
    18,327.28x = 342,793,430.05
  5. Step 5: Solve for x
    x = 342,793,430.05/18,327.28
  6. Step 6: Final answer
    x = 18,704.00

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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.