Home / 6,918.11-10,379.78-4,146.77

Finding the Fourth Proportional to 6,918.11, 10,379.78 and 4,146.77

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Solution

The fourth proportional to 6,918.11, 10,379.78 and 4,146.77 is: 6,221.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,918.11 : 10,379.78 = 4,146.77 : x
  2. Step 2: Convert to fraction form
    6,918.11/10,379.78 = 4,146.77/x
  3. Step 3: Cross multiply
    6,918.11x = 10,379.78 × 4,146.77
  4. Step 4: Simplify right side
    6,918.11x = 43,042,560.31
  5. Step 5: Solve for x
    x = 43,042,560.31/6,918.11
  6. Step 6: Final answer
    x = 6,221.72

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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.