Home / 12,388.97-17,096.79-6,723.69

Finding the Fourth Proportional to 12,388.97, 17,096.79 and 6,723.69

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Solution

The fourth proportional to 12,388.97, 17,096.79 and 6,723.69 is: 9,278.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,388.97 : 17,096.79 = 6,723.69 : x
  2. Step 2: Convert to fraction form
    12,388.97/17,096.79 = 6,723.69/x
  3. Step 3: Cross multiply
    12,388.97x = 17,096.79 × 6,723.69
  4. Step 4: Simplify right side
    12,388.97x = 114,953,515.96
  5. Step 5: Solve for x
    x = 114,953,515.96/12,388.97
  6. Step 6: Final answer
    x = 9,278.70

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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.