Home / 12,354.62-17,049.38-6,689.37

Finding the Fourth Proportional to 12,354.62, 17,049.38 and 6,689.37

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Solution

The fourth proportional to 12,354.62, 17,049.38 and 6,689.37 is: 9,231.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,354.62 : 17,049.38 = 6,689.37 : x
  2. Step 2: Convert to fraction form
    12,354.62/17,049.38 = 6,689.37/x
  3. Step 3: Cross multiply
    12,354.62x = 17,049.38 × 6,689.37
  4. Step 4: Simplify right side
    12,354.62x = 114,049,627.81
  5. Step 5: Solve for x
    x = 114,049,627.81/12,354.62
  6. Step 6: Final answer
    x = 9,231.33

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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.