Home / 11,099.12-15,295.74-7,949.84

Finding the Fourth Proportional to 11,099.12, 15,295.74 and 7,949.84

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Solution

The fourth proportional to 11,099.12, 15,295.74 and 7,949.84 is: 10,955.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,099.12 : 15,295.74 = 7,949.84 : x
  2. Step 2: Convert to fraction form
    11,099.12/15,295.74 = 7,949.84/x
  3. Step 3: Cross multiply
    11,099.12x = 15,295.74 × 7,949.84
  4. Step 4: Simplify right side
    11,099.12x = 121,598,685.68
  5. Step 5: Solve for x
    x = 121,598,685.68/11,099.12
  6. Step 6: Final answer
    x = 10,955.71

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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.