Home / 14,218.05-19,622.24-8,169.15

Finding the Fourth Proportional to 14,218.05, 19,622.24 and 8,169.15

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Solution

The fourth proportional to 14,218.05, 19,622.24 and 8,169.15 is: 11,274.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,218.05 : 19,622.24 = 8,169.15 : x
  2. Step 2: Convert to fraction form
    14,218.05/19,622.24 = 8,169.15/x
  3. Step 3: Cross multiply
    14,218.05x = 19,622.24 × 8,169.15
  4. Step 4: Simplify right side
    14,218.05x = 160,297,021.90
  5. Step 5: Solve for x
    x = 160,297,021.90/14,218.05
  6. Step 6: Final answer
    x = 11,274.19

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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.