Home / 11,247.43-15,506.89-7,704.31

Finding the Fourth Proportional to 11,247.43, 15,506.89 and 7,704.31

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Solution

The fourth proportional to 11,247.43, 15,506.89 and 7,704.31 is: 10,621.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,247.43 : 15,506.89 = 7,704.31 : x
  2. Step 2: Convert to fraction form
    11,247.43/15,506.89 = 7,704.31/x
  3. Step 3: Cross multiply
    11,247.43x = 15,506.89 × 7,704.31
  4. Step 4: Simplify right side
    11,247.43x = 119,469,887.70
  5. Step 5: Solve for x
    x = 119,469,887.70/11,247.43
  6. Step 6: Final answer
    x = 10,621.97

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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.