Home / 13,318.24-19,977.30-3,456.68

Finding the Fourth Proportional to 13,318.24, 19,977.30 and 3,456.68

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Solution

The fourth proportional to 13,318.24, 19,977.30 and 3,456.68 is: 5,185.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,318.24 : 19,977.30 = 3,456.68 : x
  2. Step 2: Convert to fraction form
    13,318.24/19,977.30 = 3,456.68/x
  3. Step 3: Cross multiply
    13,318.24x = 19,977.30 × 3,456.68
  4. Step 4: Simplify right side
    13,318.24x = 69,055,133.36
  5. Step 5: Solve for x
    x = 69,055,133.36/13,318.24
  6. Step 6: Final answer
    x = 5,185.00

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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.