Home / 13,389.20-20,086.83-9,230.86

Finding the Fourth Proportional to 13,389.20, 20,086.83 and 9,230.86

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Solution

The fourth proportional to 13,389.20, 20,086.83 and 9,230.86 is: 13,848.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,389.20 : 20,086.83 = 9,230.86 : x
  2. Step 2: Convert to fraction form
    13,389.20/20,086.83 = 9,230.86/x
  3. Step 3: Cross multiply
    13,389.20x = 20,086.83 × 9,230.86
  4. Step 4: Simplify right side
    13,389.20x = 185,418,568.99
  5. Step 5: Solve for x
    x = 185,418,568.99/13,389.20
  6. Step 6: Final answer
    x = 13,848.37

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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.