Home / 13,203.62-18,222.10-10,839.14

Finding the Fourth Proportional to 13,203.62, 18,222.10 and 10,839.14

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Solution

The fourth proportional to 13,203.62, 18,222.10 and 10,839.14 is: 14,958.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,203.62 : 18,222.10 = 10,839.14 : x
  2. Step 2: Convert to fraction form
    13,203.62/18,222.10 = 10,839.14/x
  3. Step 3: Cross multiply
    13,203.62x = 18,222.10 × 10,839.14
  4. Step 4: Simplify right side
    13,203.62x = 197,511,892.99
  5. Step 5: Solve for x
    x = 197,511,892.99/13,203.62
  6. Step 6: Final answer
    x = 14,958.92

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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.