Home / 12,821.80-19,232.70-5,896.30

Finding the Fourth Proportional to 12,821.80, 19,232.70 and 5,896.30

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Solution

The fourth proportional to 12,821.80, 19,232.70 and 5,896.30 is: 8,844.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,821.80 : 19,232.70 = 5,896.30 : x
  2. Step 2: Convert to fraction form
    12,821.80/19,232.70 = 5,896.30/x
  3. Step 3: Cross multiply
    12,821.80x = 19,232.70 × 5,896.30
  4. Step 4: Simplify right side
    12,821.80x = 113,401,769.01
  5. Step 5: Solve for x
    x = 113,401,769.01/12,821.80
  6. Step 6: Final answer
    x = 8,844.45

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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.