Home / 12,207.40-18,314.37-5,187.73

Finding the Fourth Proportional to 12,207.40, 18,314.37 and 5,187.73

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Solution

The fourth proportional to 12,207.40, 18,314.37 and 5,187.73 is: 7,782.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,207.40 : 18,314.37 = 5,187.73 : x
  2. Step 2: Convert to fraction form
    12,207.40/18,314.37 = 5,187.73/x
  3. Step 3: Cross multiply
    12,207.40x = 18,314.37 × 5,187.73
  4. Step 4: Simplify right side
    12,207.40x = 95,010,006.68
  5. Step 5: Solve for x
    x = 95,010,006.68/12,207.40
  6. Step 6: Final answer
    x = 7,782.98

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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.