Home / 12,231.26-18,348.42-4,331.93

Finding the Fourth Proportional to 12,231.26, 18,348.42 and 4,331.93

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Solution

The fourth proportional to 12,231.26, 18,348.42 and 4,331.93 is: 6,498.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,231.26 : 18,348.42 = 4,331.93 : x
  2. Step 2: Convert to fraction form
    12,231.26/18,348.42 = 4,331.93/x
  3. Step 3: Cross multiply
    12,231.26x = 18,348.42 × 4,331.93
  4. Step 4: Simplify right side
    12,231.26x = 79,483,979.31
  5. Step 5: Solve for x
    x = 79,483,979.31/12,231.26
  6. Step 6: Final answer
    x = 6,498.43

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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.