Home / 11,321.12-15,623.09-6,285.38

Finding the Fourth Proportional to 11,321.12, 15,623.09 and 6,285.38

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Solution

The fourth proportional to 11,321.12, 15,623.09 and 6,285.38 is: 8,673.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,321.12 : 15,623.09 = 6,285.38 : x
  2. Step 2: Convert to fraction form
    11,321.12/15,623.09 = 6,285.38/x
  3. Step 3: Cross multiply
    11,321.12x = 15,623.09 × 6,285.38
  4. Step 4: Simplify right side
    11,321.12x = 98,196,947.88
  5. Step 5: Solve for x
    x = 98,196,947.88/11,321.12
  6. Step 6: Final answer
    x = 8,673.79

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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.