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Finding the Fourth Proportional to 6,889.56, 9,496.68 and 6,317.49

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Solution

The fourth proportional to 6,889.56, 9,496.68 and 6,317.49 is: 8,708.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,889.56 : 9,496.68 = 6,317.49 : x
  2. Step 2: Convert to fraction form
    6,889.56/9,496.68 = 6,317.49/x
  3. Step 3: Cross multiply
    6,889.56x = 9,496.68 × 6,317.49
  4. Step 4: Simplify right side
    6,889.56x = 59,995,180.93
  5. Step 5: Solve for x
    x = 59,995,180.93/6,889.56
  6. Step 6: Final answer
    x = 8,708.13

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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.