Home / 13,708.43-18,917.49-7,739.96

Finding the Fourth Proportional to 13,708.43, 18,917.49 and 7,739.96

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Solution

The fourth proportional to 13,708.43, 18,917.49 and 7,739.96 is: 10,681.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,708.43 : 18,917.49 = 7,739.96 : x
  2. Step 2: Convert to fraction form
    13,708.43/18,917.49 = 7,739.96/x
  3. Step 3: Cross multiply
    13,708.43x = 18,917.49 × 7,739.96
  4. Step 4: Simplify right side
    13,708.43x = 146,420,521.31
  5. Step 5: Solve for x
    x = 146,420,521.31/13,708.43
  6. Step 6: Final answer
    x = 10,681.06

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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.