Home / 13,559.10-20,336.72-5,243.03

Finding the Fourth Proportional to 13,559.10, 20,336.72 and 5,243.03

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Solution

The fourth proportional to 13,559.10, 20,336.72 and 5,243.03 is: 7,863.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,559.10 : 20,336.72 = 5,243.03 : x
  2. Step 2: Convert to fraction form
    13,559.10/20,336.72 = 5,243.03/x
  3. Step 3: Cross multiply
    13,559.10x = 20,336.72 × 5,243.03
  4. Step 4: Simplify right side
    13,559.10x = 106,625,905.16
  5. Step 5: Solve for x
    x = 106,625,905.16/13,559.10
  6. Step 6: Final answer
    x = 7,863.79

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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.