Home / 6,991.11-10,474.36-6,574.90

Finding the Fourth Proportional to 6,991.11, 10,474.36 and 6,574.90

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Solution

The fourth proportional to 6,991.11, 10,474.36 and 6,574.90 is: 9,850.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,991.11 : 10,474.36 = 6,574.90 : x
  2. Step 2: Convert to fraction form
    6,991.11/10,474.36 = 6,574.90/x
  3. Step 3: Cross multiply
    6,991.11x = 10,474.36 × 6,574.90
  4. Step 4: Simplify right side
    6,991.11x = 68,867,854.10
  5. Step 5: Solve for x
    x = 68,867,854.10/6,991.11
  6. Step 6: Final answer
    x = 9,850.78

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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.