Home / 16,821.92-25,236.48-5,136

Finding the Fourth Proportional to 16,821.92, 25,236.48 and 5,136

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Solution

The fourth proportional to 16,821.92, 25,236.48 and 5,136 is: 7,705.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,821.92 : 25,236.48 = 5,136 : x
  2. Step 2: Convert to fraction form
    16,821.92/25,236.48 = 5,136/x
  3. Step 3: Cross multiply
    16,821.92x = 25,236.48 × 5,136
  4. Step 4: Simplify right side
    16,821.92x = 129,614,561.28
  5. Step 5: Solve for x
    x = 129,614,561.28/16,821.92
  6. Step 6: Final answer
    x = 7,705.10

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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.