Home / 11,105.19-15,324.12-6,628.05

Finding the Fourth Proportional to 11,105.19, 15,324.12 and 6,628.05

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Solution

The fourth proportional to 11,105.19, 15,324.12 and 6,628.05 is: 9,146.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,105.19 : 15,324.12 = 6,628.05 : x
  2. Step 2: Convert to fraction form
    11,105.19/15,324.12 = 6,628.05/x
  3. Step 3: Cross multiply
    11,105.19x = 15,324.12 × 6,628.05
  4. Step 4: Simplify right side
    11,105.19x = 101,569,033.57
  5. Step 5: Solve for x
    x = 101,569,033.57/11,105.19
  6. Step 6: Final answer
    x = 9,146.09

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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.