Home / 18,686.97-25,794.26-11,135.67

Finding the Fourth Proportional to 18,686.97, 25,794.26 and 11,135.67

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Solution

The fourth proportional to 18,686.97, 25,794.26 and 11,135.67 is: 15,370.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,686.97 : 25,794.26 = 11,135.67 : x
  2. Step 2: Convert to fraction form
    18,686.97/25,794.26 = 11,135.67/x
  3. Step 3: Cross multiply
    18,686.97x = 25,794.26 × 11,135.67
  4. Step 4: Simplify right side
    18,686.97x = 287,236,308.80
  5. Step 5: Solve for x
    x = 287,236,308.80/18,686.97
  6. Step 6: Final answer
    x = 15,370.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.