Home / 12,391.72-18,589.22-6,548.56

Finding the Fourth Proportional to 12,391.72, 18,589.22 and 6,548.56

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Solution

The fourth proportional to 12,391.72, 18,589.22 and 6,548.56 is: 9,823.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,391.72 : 18,589.22 = 6,548.56 : x
  2. Step 2: Convert to fraction form
    12,391.72/18,589.22 = 6,548.56/x
  3. Step 3: Cross multiply
    12,391.72x = 18,589.22 × 6,548.56
  4. Step 4: Simplify right side
    12,391.72x = 121,732,622.52
  5. Step 5: Solve for x
    x = 121,732,622.52/12,391.72
  6. Step 6: Final answer
    x = 9,823.71

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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.