Home / 13,315.79-19,982.50-5,524.61

Finding the Fourth Proportional to 13,315.79, 19,982.50 and 5,524.61

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Solution

The fourth proportional to 13,315.79, 19,982.50 and 5,524.61 is: 8,290.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,315.79 : 19,982.50 = 5,524.61 : x
  2. Step 2: Convert to fraction form
    13,315.79/19,982.50 = 5,524.61/x
  3. Step 3: Cross multiply
    13,315.79x = 19,982.50 × 5,524.61
  4. Step 4: Simplify right side
    13,315.79x = 110,395,405.60
  5. Step 5: Solve for x
    x = 110,395,405.60/13,315.79
  6. Step 6: Final answer
    x = 8,290.56

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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.