Home / 12,422.99-17,142.96-6,757.69

Finding the Fourth Proportional to 12,422.99, 17,142.96 and 6,757.69

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Solution

The fourth proportional to 12,422.99, 17,142.96 and 6,757.69 is: 9,325.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,422.99 : 17,142.96 = 6,757.69 : x
  2. Step 2: Convert to fraction form
    12,422.99/17,142.96 = 6,757.69/x
  3. Step 3: Cross multiply
    12,422.99x = 17,142.96 × 6,757.69
  4. Step 4: Simplify right side
    12,422.99x = 115,846,809.36
  5. Step 5: Solve for x
    x = 115,846,809.36/12,422.99
  6. Step 6: Final answer
    x = 9,325.20

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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.