Home / 14,651.62-20,217.76-8,190.05

Finding the Fourth Proportional to 14,651.62, 20,217.76 and 8,190.05

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Solution

The fourth proportional to 14,651.62, 20,217.76 and 8,190.05 is: 11,301.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,651.62 : 20,217.76 = 8,190.05 : x
  2. Step 2: Convert to fraction form
    14,651.62/20,217.76 = 8,190.05/x
  3. Step 3: Cross multiply
    14,651.62x = 20,217.76 × 8,190.05
  4. Step 4: Simplify right side
    14,651.62x = 165,584,343.72
  5. Step 5: Solve for x
    x = 165,584,343.72/14,651.62
  6. Step 6: Final answer
    x = 11,301.44

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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.