Home / 11,317.78-15,619.25-6,282.21

Finding the Fourth Proportional to 11,317.78, 15,619.25 and 6,282.21

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Solution

The fourth proportional to 11,317.78, 15,619.25 and 6,282.21 is: 8,669.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,317.78 : 15,619.25 = 6,282.21 : x
  2. Step 2: Convert to fraction form
    11,317.78/15,619.25 = 6,282.21/x
  3. Step 3: Cross multiply
    11,317.78x = 15,619.25 × 6,282.21
  4. Step 4: Simplify right side
    11,317.78x = 98,123,408.54
  5. Step 5: Solve for x
    x = 98,123,408.54/11,317.78
  6. Step 6: Final answer
    x = 8,669.85

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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.