Home / 10,999.78-15,174.33-6,282.82

Finding the Fourth Proportional to 10,999.78, 15,174.33 and 6,282.82

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Solution

The fourth proportional to 10,999.78, 15,174.33 and 6,282.82 is: 8,667.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,999.78 : 15,174.33 = 6,282.82 : x
  2. Step 2: Convert to fraction form
    10,999.78/15,174.33 = 6,282.82/x
  3. Step 3: Cross multiply
    10,999.78x = 15,174.33 × 6,282.82
  4. Step 4: Simplify right side
    10,999.78x = 95,337,584.01
  5. Step 5: Solve for x
    x = 95,337,584.01/10,999.78
  6. Step 6: Final answer
    x = 8,667.23

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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.