Home / 13,839.61-20,763.13-5,525.46

Finding the Fourth Proportional to 13,839.61, 20,763.13 and 5,525.46

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Solution

The fourth proportional to 13,839.61, 20,763.13 and 5,525.46 is: 8,289.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,839.61 : 20,763.13 = 5,525.46 : x
  2. Step 2: Convert to fraction form
    13,839.61/20,763.13 = 5,525.46/x
  3. Step 3: Cross multiply
    13,839.61x = 20,763.13 × 5,525.46
  4. Step 4: Simplify right side
    13,839.61x = 114,725,929.64
  5. Step 5: Solve for x
    x = 114,725,929.64/13,839.61
  6. Step 6: Final answer
    x = 8,289.68

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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.