Home / 11,105.70-16,663.71-4,864.90

Finding the Fourth Proportional to 11,105.70, 16,663.71 and 4,864.90

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Solution

The fourth proportional to 11,105.70, 16,663.71 and 4,864.90 is: 7,299.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,105.70 : 16,663.71 = 4,864.90 : x
  2. Step 2: Convert to fraction form
    11,105.70/16,663.71 = 4,864.90/x
  3. Step 3: Cross multiply
    11,105.70x = 16,663.71 × 4,864.90
  4. Step 4: Simplify right side
    11,105.70x = 81,067,258.45
  5. Step 5: Solve for x
    x = 81,067,258.45/11,105.70
  6. Step 6: Final answer
    x = 7,299.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.