Home / 12,242.79-18,371.11-5,222.14

Finding the Fourth Proportional to 12,242.79, 18,371.11 and 5,222.14

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Solution

The fourth proportional to 12,242.79, 18,371.11 and 5,222.14 is: 7,836.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,242.79 : 18,371.11 = 5,222.14 : x
  2. Step 2: Convert to fraction form
    12,242.79/18,371.11 = 5,222.14/x
  3. Step 3: Cross multiply
    12,242.79x = 18,371.11 × 5,222.14
  4. Step 4: Simplify right side
    12,242.79x = 95,936,449.39
  5. Step 5: Solve for x
    x = 95,936,449.39/12,242.79
  6. Step 6: Final answer
    x = 7,836.16

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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.