Home / 11,721.54-17,588.08-5,481.98

Finding the Fourth Proportional to 11,721.54, 17,588.08 and 5,481.98

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Solution

The fourth proportional to 11,721.54, 17,588.08 and 5,481.98 is: 8,225.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,721.54 : 17,588.08 = 5,481.98 : x
  2. Step 2: Convert to fraction form
    11,721.54/17,588.08 = 5,481.98/x
  3. Step 3: Cross multiply
    11,721.54x = 17,588.08 × 5,481.98
  4. Step 4: Simplify right side
    11,721.54x = 96,417,502.80
  5. Step 5: Solve for x
    x = 96,417,502.80/11,721.54
  6. Step 6: Final answer
    x = 8,225.67

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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.