Home / 16,187.20-22,291.68-13,364.80

Finding the Fourth Proportional to 16,187.20, 22,291.68 and 13,364.80

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Solution

The fourth proportional to 16,187.20, 22,291.68 and 13,364.80 is: 18,404.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,187.20 : 22,291.68 = 13,364.80 : x
  2. Step 2: Convert to fraction form
    16,187.20/22,291.68 = 13,364.80/x
  3. Step 3: Cross multiply
    16,187.20x = 22,291.68 × 13,364.80
  4. Step 4: Simplify right side
    16,187.20x = 297,923,844.86
  5. Step 5: Solve for x
    x = 297,923,844.86/16,187.20
  6. Step 6: Final answer
    x = 18,404.90

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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.