Home / 11,215.44-16,825.82-3,423.76

Finding the Fourth Proportional to 11,215.44, 16,825.82 and 3,423.76

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Solution

The fourth proportional to 11,215.44, 16,825.82 and 3,423.76 is: 5,136.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,215.44 : 16,825.82 = 3,423.76 : x
  2. Step 2: Convert to fraction form
    11,215.44/16,825.82 = 3,423.76/x
  3. Step 3: Cross multiply
    11,215.44x = 16,825.82 × 3,423.76
  4. Step 4: Simplify right side
    11,215.44x = 57,607,569.48
  5. Step 5: Solve for x
    x = 57,607,569.48/11,215.44
  6. Step 6: Final answer
    x = 5,136.45

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1.5x scale

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.