Home / 13,664.45-20,488.26-5,334.77

Finding the Fourth Proportional to 13,664.45, 20,488.26 and 5,334.77

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Solution

The fourth proportional to 13,664.45, 20,488.26 and 5,334.77 is: 7,998.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,664.45 : 20,488.26 = 5,334.77 : x
  2. Step 2: Convert to fraction form
    13,664.45/20,488.26 = 5,334.77/x
  3. Step 3: Cross multiply
    13,664.45x = 20,488.26 × 5,334.77
  4. Step 4: Simplify right side
    13,664.45x = 109,300,154.80
  5. Step 5: Solve for x
    x = 109,300,154.80/13,664.45
  6. Step 6: Final answer
    x = 7,998.87

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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.