Home / 10,998.05-15,180.03-7,226.33

Finding the Fourth Proportional to 10,998.05, 15,180.03 and 7,226.33

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Solution

The fourth proportional to 10,998.05, 15,180.03 and 7,226.33 is: 9,974.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,998.05 : 15,180.03 = 7,226.33 : x
  2. Step 2: Convert to fraction form
    10,998.05/15,180.03 = 7,226.33/x
  3. Step 3: Cross multiply
    10,998.05x = 15,180.03 × 7,226.33
  4. Step 4: Simplify right side
    10,998.05x = 109,695,849.10
  5. Step 5: Solve for x
    x = 109,695,849.10/10,998.05
  6. Step 6: Final answer
    x = 9,974.12

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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.