Home / 13,021.30-19,531.97-4,707.18

Finding the Fourth Proportional to 13,021.30, 19,531.97 and 4,707.18

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Solution

The fourth proportional to 13,021.30, 19,531.97 and 4,707.18 is: 7,060.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,021.30 : 19,531.97 = 4,707.18 : x
  2. Step 2: Convert to fraction form
    13,021.30/19,531.97 = 4,707.18/x
  3. Step 3: Cross multiply
    13,021.30x = 19,531.97 × 4,707.18
  4. Step 4: Simplify right side
    13,021.30x = 91,940,498.54
  5. Step 5: Solve for x
    x = 91,940,498.54/13,021.30
  6. Step 6: Final answer
    x = 7,060.78

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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.