Home / 10,491.78-15,716.91-6,796.62

Finding the Fourth Proportional to 10,491.78, 15,716.91 and 6,796.62

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Solution

The fourth proportional to 10,491.78, 15,716.91 and 6,796.62 is: 10,181.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,491.78 : 15,716.91 = 6,796.62 : x
  2. Step 2: Convert to fraction form
    10,491.78/15,716.91 = 6,796.62/x
  3. Step 3: Cross multiply
    10,491.78x = 15,716.91 × 6,796.62
  4. Step 4: Simplify right side
    10,491.78x = 106,821,864.84
  5. Step 5: Solve for x
    x = 106,821,864.84/10,491.78
  6. Step 6: Final answer
    x = 10,181.48

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1.5x scale

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.