Home / 18,711.18-25,820.37-11,166.03

Finding the Fourth Proportional to 18,711.18, 25,820.37 and 11,166.03

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Solution

The fourth proportional to 18,711.18, 25,820.37 and 11,166.03 is: 15,408.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711.18 : 25,820.37 = 11,166.03 : x
  2. Step 2: Convert to fraction form
    18,711.18/25,820.37 = 11,166.03/x
  3. Step 3: Cross multiply
    18,711.18x = 25,820.37 × 11,166.03
  4. Step 4: Simplify right side
    18,711.18x = 288,311,026.03
  5. Step 5: Solve for x
    x = 288,311,026.03/18,711.18
  6. Step 6: Final answer
    x = 15,408.49

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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.