Home / 26,640.84-39,961.28-6,917.74

Finding the Fourth Proportional to 26,640.84, 39,961.28 and 6,917.74

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Solution

The fourth proportional to 26,640.84, 39,961.28 and 6,917.74 is: 10,376.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,640.84 : 39,961.28 = 6,917.74 : x
  2. Step 2: Convert to fraction form
    26,640.84/39,961.28 = 6,917.74/x
  3. Step 3: Cross multiply
    26,640.84x = 39,961.28 × 6,917.74
  4. Step 4: Simplify right side
    26,640.84x = 276,441,745.11
  5. Step 5: Solve for x
    x = 276,441,745.11/26,640.84
  6. Step 6: Final answer
    x = 10,376.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.