Home / 9,238.91-13,859.11-3,689.21

Finding the Fourth Proportional to 9,238.91, 13,859.11 and 3,689.21

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Solution

The fourth proportional to 9,238.91, 13,859.11 and 3,689.21 is: 5,534.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,238.91 : 13,859.11 = 3,689.21 : x
  2. Step 2: Convert to fraction form
    9,238.91/13,859.11 = 3,689.21/x
  3. Step 3: Cross multiply
    9,238.91x = 13,859.11 × 3,689.21
  4. Step 4: Simplify right side
    9,238.91x = 51,129,167.20
  5. Step 5: Solve for x
    x = 51,129,167.20/9,238.91
  6. Step 6: Final answer
    x = 5,534.11

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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.