Home / 6,331.67-9,518.01-5,115.15

Finding the Fourth Proportional to 6,331.67, 9,518.01 and 5,115.15

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Solution

The fourth proportional to 6,331.67, 9,518.01 and 5,115.15 is: 7,689.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,331.67 : 9,518.01 = 5,115.15 : x
  2. Step 2: Convert to fraction form
    6,331.67/9,518.01 = 5,115.15/x
  3. Step 3: Cross multiply
    6,331.67x = 9,518.01 × 5,115.15
  4. Step 4: Simplify right side
    6,331.67x = 48,686,029.67
  5. Step 5: Solve for x
    x = 48,686,029.67/6,331.67
  6. Step 6: Final answer
    x = 7,689.29

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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.