Home / 13,515.92-20,281.14-5,623.88

Finding the Fourth Proportional to 13,515.92, 20,281.14 and 5,623.88

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Solution

The fourth proportional to 13,515.92, 20,281.14 and 5,623.88 is: 8,438.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,515.92 : 20,281.14 = 5,623.88 : x
  2. Step 2: Convert to fraction form
    13,515.92/20,281.14 = 5,623.88/x
  3. Step 3: Cross multiply
    13,515.92x = 20,281.14 × 5,623.88
  4. Step 4: Simplify right side
    13,515.92x = 114,058,596.22
  5. Step 5: Solve for x
    x = 114,058,596.22/13,515.92
  6. Step 6: Final answer
    x = 8,438.83

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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.