Home / 9,389.26-12,967.82-6,399.96

Finding the Fourth Proportional to 9,389.26, 12,967.82 and 6,399.96

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Solution

The fourth proportional to 9,389.26, 12,967.82 and 6,399.96 is: 8,839.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,389.26 : 12,967.82 = 6,399.96 : x
  2. Step 2: Convert to fraction form
    9,389.26/12,967.82 = 6,399.96/x
  3. Step 3: Cross multiply
    9,389.26x = 12,967.82 × 6,399.96
  4. Step 4: Simplify right side
    9,389.26x = 82,993,529.29
  5. Step 5: Solve for x
    x = 82,993,529.29/9,389.26
  6. Step 6: Final answer
    x = 8,839.20

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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.