Home / 13,334.62-18,389.82-11,103.88

Finding the Fourth Proportional to 13,334.62, 18,389.82 and 11,103.88

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Solution

The fourth proportional to 13,334.62, 18,389.82 and 11,103.88 is: 15,313.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,334.62 : 18,389.82 = 11,103.88 : x
  2. Step 2: Convert to fraction form
    13,334.62/18,389.82 = 11,103.88/x
  3. Step 3: Cross multiply
    13,334.62x = 18,389.82 × 11,103.88
  4. Step 4: Simplify right side
    13,334.62x = 204,198,354.50
  5. Step 5: Solve for x
    x = 204,198,354.50/13,334.62
  6. Step 6: Final answer
    x = 15,313.40

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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.