Home / 13,299.18-18,321.84-10,937.22

Finding the Fourth Proportional to 13,299.18, 18,321.84 and 10,937.22

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Solution

The fourth proportional to 13,299.18, 18,321.84 and 10,937.22 is: 15,067.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,299.18 : 18,321.84 = 10,937.22 : x
  2. Step 2: Convert to fraction form
    13,299.18/18,321.84 = 10,937.22/x
  3. Step 3: Cross multiply
    13,299.18x = 18,321.84 × 10,937.22
  4. Step 4: Simplify right side
    13,299.18x = 200,389,994.88
  5. Step 5: Solve for x
    x = 200,389,994.88/13,299.18
  6. Step 6: Final answer
    x = 15,067.85

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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.