Home / 13,886.14-20,811.33-5,110.66

Finding the Fourth Proportional to 13,886.14, 20,811.33 and 5,110.66

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Solution

The fourth proportional to 13,886.14, 20,811.33 and 5,110.66 is: 7,659.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,886.14 : 20,811.33 = 5,110.66 : x
  2. Step 2: Convert to fraction form
    13,886.14/20,811.33 = 5,110.66/x
  3. Step 3: Cross multiply
    13,886.14x = 20,811.33 × 5,110.66
  4. Step 4: Simplify right side
    13,886.14x = 106,359,631.78
  5. Step 5: Solve for x
    x = 106,359,631.78/13,886.14
  6. Step 6: Final answer
    x = 7,659.41

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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.