Home / 13,866.92-20,792.05-5,423.37

Finding the Fourth Proportional to 13,866.92, 20,792.05 and 5,423.37

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Solution

The fourth proportional to 13,866.92, 20,792.05 and 5,423.37 is: 8,131.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,866.92 : 20,792.05 = 5,423.37 : x
  2. Step 2: Convert to fraction form
    13,866.92/20,792.05 = 5,423.37/x
  3. Step 3: Cross multiply
    13,866.92x = 20,792.05 × 5,423.37
  4. Step 4: Simplify right side
    13,866.92x = 112,762,888.68
  5. Step 5: Solve for x
    x = 112,762,888.68/13,866.92
  6. Step 6: Final answer
    x = 8,131.79

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1.5x scale

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.