Home / 12,211.15-18,293.07-6,930.19

Finding the Fourth Proportional to 12,211.15, 18,293.07 and 6,930.19

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Solution

The fourth proportional to 12,211.15, 18,293.07 and 6,930.19 is: 10,381.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,211.15 : 18,293.07 = 6,930.19 : x
  2. Step 2: Convert to fraction form
    12,211.15/18,293.07 = 6,930.19/x
  3. Step 3: Cross multiply
    12,211.15x = 18,293.07 × 6,930.19
  4. Step 4: Simplify right side
    12,211.15x = 126,774,450.78
  5. Step 5: Solve for x
    x = 126,774,450.78/12,211.15
  6. Step 6: Final answer
    x = 10,381.86

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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.