Home / 11,321.13-15,620.83-6,845.07

Finding the Fourth Proportional to 11,321.13, 15,620.83 and 6,845.07

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Solution

The fourth proportional to 11,321.13, 15,620.83 and 6,845.07 is: 9,444.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,321.13 : 15,620.83 = 6,845.07 : x
  2. Step 2: Convert to fraction form
    11,321.13/15,620.83 = 6,845.07/x
  3. Step 3: Cross multiply
    11,321.13x = 15,620.83 × 6,845.07
  4. Step 4: Simplify right side
    11,321.13x = 106,925,716.27
  5. Step 5: Solve for x
    x = 106,925,716.27/11,321.13
  6. Step 6: Final answer
    x = 9,444.79

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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.