Home / 11,144.93-15,379.47-6,108.75

Finding the Fourth Proportional to 11,144.93, 15,379.47 and 6,108.75

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Solution

The fourth proportional to 11,144.93, 15,379.47 and 6,108.75 is: 8,429.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,144.93 : 15,379.47 = 6,108.75 : x
  2. Step 2: Convert to fraction form
    11,144.93/15,379.47 = 6,108.75/x
  3. Step 3: Cross multiply
    11,144.93x = 15,379.47 × 6,108.75
  4. Step 4: Simplify right side
    11,144.93x = 93,949,337.36
  5. Step 5: Solve for x
    x = 93,949,337.36/11,144.93
  6. Step 6: Final answer
    x = 8,429.79

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Double scale
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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.