Home / 9,117.78-13,682.43-5,229.78

Finding the Fourth Proportional to 9,117.78, 13,682.43 and 5,229.78

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Solution

The fourth proportional to 9,117.78, 13,682.43 and 5,229.78 is: 7,847.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,117.78 : 13,682.43 = 5,229.78 : x
  2. Step 2: Convert to fraction form
    9,117.78/13,682.43 = 5,229.78/x
  3. Step 3: Cross multiply
    9,117.78x = 13,682.43 × 5,229.78
  4. Step 4: Simplify right side
    9,117.78x = 71,556,098.77
  5. Step 5: Solve for x
    x = 71,556,098.77/9,117.78
  6. Step 6: Final answer
    x = 7,847.97

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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.