Home / 12,812.30-19,217.01-3,453.01

Finding the Fourth Proportional to 12,812.30, 19,217.01 and 3,453.01

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Solution

The fourth proportional to 12,812.30, 19,217.01 and 3,453.01 is: 5,179.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,812.30 : 19,217.01 = 3,453.01 : x
  2. Step 2: Convert to fraction form
    12,812.30/19,217.01 = 3,453.01/x
  3. Step 3: Cross multiply
    12,812.30x = 19,217.01 × 3,453.01
  4. Step 4: Simplify right side
    12,812.30x = 66,356,527.70
  5. Step 5: Solve for x
    x = 66,356,527.70/12,812.30
  6. Step 6: Final answer
    x = 5,179.13

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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.