Home / 13,559.11-20,323.05-5,235.46

Finding the Fourth Proportional to 13,559.11, 20,323.05 and 5,235.46

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Solution

The fourth proportional to 13,559.11, 20,323.05 and 5,235.46 is: 7,847.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,559.11 : 20,323.05 = 5,235.46 : x
  2. Step 2: Convert to fraction form
    13,559.11/20,323.05 = 5,235.46/x
  3. Step 3: Cross multiply
    13,559.11x = 20,323.05 × 5,235.46
  4. Step 4: Simplify right side
    13,559.11x = 106,400,515.35
  5. Step 5: Solve for x
    x = 106,400,515.35/13,559.11
  6. Step 6: Final answer
    x = 7,847.16

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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.