Home / 11,156.43-15,391.01-6,906.36

Finding the Fourth Proportional to 11,156.43, 15,391.01 and 6,906.36

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Solution

The fourth proportional to 11,156.43, 15,391.01 and 6,906.36 is: 9,527.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,156.43 : 15,391.01 = 6,906.36 : x
  2. Step 2: Convert to fraction form
    11,156.43/15,391.01 = 6,906.36/x
  3. Step 3: Cross multiply
    11,156.43x = 15,391.01 × 6,906.36
  4. Step 4: Simplify right side
    11,156.43x = 106,295,930.81
  5. Step 5: Solve for x
    x = 106,295,930.81/11,156.43
  6. Step 6: Final answer
    x = 9,527.77

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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.