Home / 12,218.48-18,326.40-8,294.96

Finding the Fourth Proportional to 12,218.48, 18,326.40 and 8,294.96

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Solution

The fourth proportional to 12,218.48, 18,326.40 and 8,294.96 is: 12,441.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,218.48 : 18,326.40 = 8,294.96 : x
  2. Step 2: Convert to fraction form
    12,218.48/18,326.40 = 8,294.96/x
  3. Step 3: Cross multiply
    12,218.48x = 18,326.40 × 8,294.96
  4. Step 4: Simplify right side
    12,218.48x = 152,016,754.94
  5. Step 5: Solve for x
    x = 152,016,754.94/12,218.48
  6. Step 6: Final answer
    x = 12,441.54

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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.