Home / 13,748.80-20,625.54-5,424.46

Finding the Fourth Proportional to 13,748.80, 20,625.54 and 5,424.46

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Solution

The fourth proportional to 13,748.80, 20,625.54 and 5,424.46 is: 8,137.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,748.80 : 20,625.54 = 5,424.46 : x
  2. Step 2: Convert to fraction form
    13,748.80/20,625.54 = 5,424.46/x
  3. Step 3: Cross multiply
    13,748.80x = 20,625.54 × 5,424.46
  4. Step 4: Simplify right side
    13,748.80x = 111,882,416.71
  5. Step 5: Solve for x
    x = 111,882,416.71/13,748.80
  6. Step 6: Final answer
    x = 8,137.61

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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.