Home / 13,215.06-19,822.65-3,355.14

Finding the Fourth Proportional to 13,215.06, 19,822.65 and 3,355.14

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Solution

The fourth proportional to 13,215.06, 19,822.65 and 3,355.14 is: 5,032.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,215.06 : 19,822.65 = 3,355.14 : x
  2. Step 2: Convert to fraction form
    13,215.06/19,822.65 = 3,355.14/x
  3. Step 3: Cross multiply
    13,215.06x = 19,822.65 × 3,355.14
  4. Step 4: Simplify right side
    13,215.06x = 66,507,765.92
  5. Step 5: Solve for x
    x = 66,507,765.92/13,215.06
  6. Step 6: Final answer
    x = 5,032.73

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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.