Home / 11,144.72-15,379.28-6,667.52

Finding the Fourth Proportional to 11,144.72, 15,379.28 and 6,667.52

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Solution

The fourth proportional to 11,144.72, 15,379.28 and 6,667.52 is: 9,200.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,144.72 : 15,379.28 = 6,667.52 : x
  2. Step 2: Convert to fraction form
    11,144.72/15,379.28 = 6,667.52/x
  3. Step 3: Cross multiply
    11,144.72x = 15,379.28 × 6,667.52
  4. Step 4: Simplify right side
    11,144.72x = 102,541,656.99
  5. Step 5: Solve for x
    x = 102,541,656.99/11,144.72
  6. Step 6: Final answer
    x = 9,200.92

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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.