Home / 11,351.72-15,665.52-6,316.38

Finding the Fourth Proportional to 11,351.72, 15,665.52 and 6,316.38

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Solution

The fourth proportional to 11,351.72, 15,665.52 and 6,316.38 is: 8,716.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,351.72 : 15,665.52 = 6,316.38 : x
  2. Step 2: Convert to fraction form
    11,351.72/15,665.52 = 6,316.38/x
  3. Step 3: Cross multiply
    11,351.72x = 15,665.52 × 6,316.38
  4. Step 4: Simplify right side
    11,351.72x = 98,949,377.22
  5. Step 5: Solve for x
    x = 98,949,377.22/11,351.72
  6. Step 6: Final answer
    x = 8,716.69

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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.