Home / 11,215.24-16,823.64-3,429.52

Finding the Fourth Proportional to 11,215.24, 16,823.64 and 3,429.52

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Solution

The fourth proportional to 11,215.24, 16,823.64 and 3,429.52 is: 5,144.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,215.24 : 16,823.64 = 3,429.52 : x
  2. Step 2: Convert to fraction form
    11,215.24/16,823.64 = 3,429.52/x
  3. Step 3: Cross multiply
    11,215.24x = 16,823.64 × 3,429.52
  4. Step 4: Simplify right side
    11,215.24x = 57,697,009.85
  5. Step 5: Solve for x
    x = 57,697,009.85/11,215.24
  6. Step 6: Final answer
    x = 5,144.52

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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.