Home / 13,974.31-19,288.65-8,313.04

Finding the Fourth Proportional to 13,974.31, 19,288.65 and 8,313.04

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Solution

The fourth proportional to 13,974.31, 19,288.65 and 8,313.04 is: 11,474.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,974.31 : 19,288.65 = 8,313.04 : x
  2. Step 2: Convert to fraction form
    13,974.31/19,288.65 = 8,313.04/x
  3. Step 3: Cross multiply
    13,974.31x = 19,288.65 × 8,313.04
  4. Step 4: Simplify right side
    13,974.31x = 160,347,319.00
  5. Step 5: Solve for x
    x = 160,347,319.00/13,974.31
  6. Step 6: Final answer
    x = 11,474.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.