Home / 11,811.54-17,721.41-5,242.34

Finding the Fourth Proportional to 11,811.54, 17,721.41 and 5,242.34

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Solution

The fourth proportional to 11,811.54, 17,721.41 and 5,242.34 is: 7,865.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,811.54 : 17,721.41 = 5,242.34 : x
  2. Step 2: Convert to fraction form
    11,811.54/17,721.41 = 5,242.34/x
  3. Step 3: Cross multiply
    11,811.54x = 17,721.41 × 5,242.34
  4. Step 4: Simplify right side
    11,811.54x = 92,901,541.68
  5. Step 5: Solve for x
    x = 92,901,541.68/11,811.54
  6. Step 6: Final answer
    x = 7,865.32

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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.