Home / 6,115.77-8,435.96-5,091.11

Finding the Fourth Proportional to 6,115.77, 8,435.96 and 5,091.11

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Solution

The fourth proportional to 6,115.77, 8,435.96 and 5,091.11 is: 7,022.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,115.77 : 8,435.96 = 5,091.11 : x
  2. Step 2: Convert to fraction form
    6,115.77/8,435.96 = 5,091.11/x
  3. Step 3: Cross multiply
    6,115.77x = 8,435.96 × 5,091.11
  4. Step 4: Simplify right side
    6,115.77x = 42,948,332.68
  5. Step 5: Solve for x
    x = 42,948,332.68/6,115.77
  6. Step 6: Final answer
    x = 7,022.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.