Home / 11,021.92-15,211.70-6,305.28

Finding the Fourth Proportional to 11,021.92, 15,211.70 and 6,305.28

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Solution

The fourth proportional to 11,021.92, 15,211.70 and 6,305.28 is: 8,702.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,021.92 : 15,211.70 = 6,305.28 : x
  2. Step 2: Convert to fraction form
    11,021.92/15,211.70 = 6,305.28/x
  3. Step 3: Cross multiply
    11,021.92x = 15,211.70 × 6,305.28
  4. Step 4: Simplify right side
    11,021.92x = 95,914,027.78
  5. Step 5: Solve for x
    x = 95,914,027.78/11,021.92
  6. Step 6: Final answer
    x = 8,702.12

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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.