Home / 10,990.94-15,174.42-7,632.68

Finding the Fourth Proportional to 10,990.94, 15,174.42 and 7,632.68

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Solution

The fourth proportional to 10,990.94, 15,174.42 and 7,632.68 is: 10,537.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,990.94 : 15,174.42 = 7,632.68 : x
  2. Step 2: Convert to fraction form
    10,990.94/15,174.42 = 7,632.68/x
  3. Step 3: Cross multiply
    10,990.94x = 15,174.42 × 7,632.68
  4. Step 4: Simplify right side
    10,990.94x = 115,821,492.05
  5. Step 5: Solve for x
    x = 115,821,492.05/10,990.94
  6. Step 6: Final answer
    x = 10,537.91

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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.