Home / 6,249.30-8,630.49-5,405.96

Finding the Fourth Proportional to 6,249.30, 8,630.49 and 5,405.96

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Solution

The fourth proportional to 6,249.30, 8,630.49 and 5,405.96 is: 7,465.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,249.30 : 8,630.49 = 5,405.96 : x
  2. Step 2: Convert to fraction form
    6,249.30/8,630.49 = 5,405.96/x
  3. Step 3: Cross multiply
    6,249.30x = 8,630.49 × 5,405.96
  4. Step 4: Simplify right side
    6,249.30x = 46,656,083.72
  5. Step 5: Solve for x
    x = 46,656,083.72/6,249.30
  6. Step 6: Final answer
    x = 7,465.81

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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.