Home / 17,215.20-25,835.76-11,655.36

Finding the Fourth Proportional to 17,215.20, 25,835.76 and 11,655.36

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Solution

The fourth proportional to 17,215.20, 25,835.76 and 11,655.36 is: 17,491.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,215.20 : 25,835.76 = 11,655.36 : x
  2. Step 2: Convert to fraction form
    17,215.20/25,835.76 = 11,655.36/x
  3. Step 3: Cross multiply
    17,215.20x = 25,835.76 × 11,655.36
  4. Step 4: Simplify right side
    17,215.20x = 301,125,083.67
  5. Step 5: Solve for x
    x = 301,125,083.67/17,215.20
  6. Step 6: Final answer
    x = 17,491.81

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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.