Home / 11,617.38-17,422.38-6,689.34

Finding the Fourth Proportional to 11,617.38, 17,422.38 and 6,689.34

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Solution

The fourth proportional to 11,617.38, 17,422.38 and 6,689.34 is: 10,031.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,617.38 : 17,422.38 = 6,689.34 : x
  2. Step 2: Convert to fraction form
    11,617.38/17,422.38 = 6,689.34/x
  3. Step 3: Cross multiply
    11,617.38x = 17,422.38 × 6,689.34
  4. Step 4: Simplify right side
    11,617.38x = 116,544,223.43
  5. Step 5: Solve for x
    x = 116,544,223.43/11,617.38
  6. Step 6: Final answer
    x = 10,031.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.