Home / 16,821.12-25,232.16-5,133.12

Finding the Fourth Proportional to 16,821.12, 25,232.16 and 5,133.12

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Solution

The fourth proportional to 16,821.12, 25,232.16 and 5,133.12 is: 7,699.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,821.12 : 25,232.16 = 5,133.12 : x
  2. Step 2: Convert to fraction form
    16,821.12/25,232.16 = 5,133.12/x
  3. Step 3: Cross multiply
    16,821.12x = 25,232.16 × 5,133.12
  4. Step 4: Simplify right side
    16,821.12x = 129,519,705.14
  5. Step 5: Solve for x
    x = 129,519,705.14/16,821.12
  6. Step 6: Final answer
    x = 7,699.83

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Similar ratio
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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.