Home / 11,321.91-15,624.72-6,286.13

Finding the Fourth Proportional to 11,321.91, 15,624.72 and 6,286.13

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Solution

The fourth proportional to 11,321.91, 15,624.72 and 6,286.13 is: 8,675.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,321.91 : 15,624.72 = 6,286.13 : x
  2. Step 2: Convert to fraction form
    11,321.91/15,624.72 = 6,286.13/x
  3. Step 3: Cross multiply
    11,321.91x = 15,624.72 × 6,286.13
  4. Step 4: Simplify right side
    11,321.91x = 98,218,936.32
  5. Step 5: Solve for x
    x = 98,218,936.32/11,321.91
  6. Step 6: Final answer
    x = 8,675.12

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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.