Home / 13,869.16-20,811.96-5,110.22

Finding the Fourth Proportional to 13,869.16, 20,811.96 and 5,110.22

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Solution

The fourth proportional to 13,869.16, 20,811.96 and 5,110.22 is: 7,668.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,869.16 : 20,811.96 = 5,110.22 : x
  2. Step 2: Convert to fraction form
    13,869.16/20,811.96 = 5,110.22/x
  3. Step 3: Cross multiply
    13,869.16x = 20,811.96 × 5,110.22
  4. Step 4: Simplify right side
    13,869.16x = 106,353,694.23
  5. Step 5: Solve for x
    x = 106,353,694.23/13,869.16
  6. Step 6: Final answer
    x = 7,668.36

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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.