Home / 6,757.21-9,331.36-6,389.06

Finding the Fourth Proportional to 6,757.21, 9,331.36 and 6,389.06

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Solution

The fourth proportional to 6,757.21, 9,331.36 and 6,389.06 is: 8,822.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,757.21 : 9,331.36 = 6,389.06 : x
  2. Step 2: Convert to fraction form
    6,757.21/9,331.36 = 6,389.06/x
  3. Step 3: Cross multiply
    6,757.21x = 9,331.36 × 6,389.06
  4. Step 4: Simplify right side
    6,757.21x = 59,618,626.75
  5. Step 5: Solve for x
    x = 59,618,626.75/6,757.21
  6. Step 6: Final answer
    x = 8,822.97

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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.