Home / 11,399.32-15,729.42-6,923.26

Finding the Fourth Proportional to 11,399.32, 15,729.42 and 6,923.26

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Solution

The fourth proportional to 11,399.32, 15,729.42 and 6,923.26 is: 9,553.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,399.32 : 15,729.42 = 6,923.26 : x
  2. Step 2: Convert to fraction form
    11,399.32/15,729.42 = 6,923.26/x
  3. Step 3: Cross multiply
    11,399.32x = 15,729.42 × 6,923.26
  4. Step 4: Simplify right side
    11,399.32x = 108,898,864.31
  5. Step 5: Solve for x
    x = 108,898,864.31/11,399.32
  6. Step 6: Final answer
    x = 9,553.10

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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.