Home / 13,339.62-18,396.72-11,108.88

Finding the Fourth Proportional to 13,339.62, 18,396.72 and 11,108.88

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Solution

The fourth proportional to 13,339.62, 18,396.72 and 11,108.88 is: 15,320.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,339.62 : 18,396.72 = 11,108.88 : x
  2. Step 2: Convert to fraction form
    13,339.62/18,396.72 = 11,108.88/x
  3. Step 3: Cross multiply
    13,339.62x = 18,396.72 × 11,108.88
  4. Step 4: Simplify right side
    13,339.62x = 204,366,954.87
  5. Step 5: Solve for x
    x = 204,366,954.87/13,339.62
  6. Step 6: Final answer
    x = 15,320.30

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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.