Home / 6,456.36-9,687.41-4,115.80

Finding the Fourth Proportional to 6,456.36, 9,687.41 and 4,115.80

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Solution

The fourth proportional to 6,456.36, 9,687.41 and 4,115.80 is: 6,175.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,456.36 : 9,687.41 = 4,115.80 : x
  2. Step 2: Convert to fraction form
    6,456.36/9,687.41 = 4,115.80/x
  3. Step 3: Cross multiply
    6,456.36x = 9,687.41 × 4,115.80
  4. Step 4: Simplify right side
    6,456.36x = 39,871,442.08
  5. Step 5: Solve for x
    x = 39,871,442.08/6,456.36
  6. Step 6: Final answer
    x = 6,175.53

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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.