Home / 6,115.11-9,172.88-2,166.78

Finding the Fourth Proportional to 6,115.11, 9,172.88 and 2,166.78

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Solution

The fourth proportional to 6,115.11, 9,172.88 and 2,166.78 is: 3,250.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,115.11 : 9,172.88 = 2,166.78 : x
  2. Step 2: Convert to fraction form
    6,115.11/9,172.88 = 2,166.78/x
  3. Step 3: Cross multiply
    6,115.11x = 9,172.88 × 2,166.78
  4. Step 4: Simplify right side
    6,115.11x = 19,875,612.93
  5. Step 5: Solve for x
    x = 19,875,612.93/6,115.11
  6. Step 6: Final answer
    x = 3,250.25

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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.