Home / 9,418.89-12,998.07-5,227.14

Finding the Fourth Proportional to 9,418.89, 12,998.07 and 5,227.14

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Solution

The fourth proportional to 9,418.89, 12,998.07 and 5,227.14 is: 7,213.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,418.89 : 12,998.07 = 5,227.14 : x
  2. Step 2: Convert to fraction form
    9,418.89/12,998.07 = 5,227.14/x
  3. Step 3: Cross multiply
    9,418.89x = 12,998.07 × 5,227.14
  4. Step 4: Simplify right side
    9,418.89x = 67,942,731.62
  5. Step 5: Solve for x
    x = 67,942,731.62/9,418.89
  6. Step 6: Final answer
    x = 7,213.45

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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.