Home / 13,249.80-18,274.11-8,717.13

Finding the Fourth Proportional to 13,249.80, 18,274.11 and 8,717.13

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Solution

The fourth proportional to 13,249.80, 18,274.11 and 8,717.13 is: 12,022.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,249.80 : 18,274.11 = 8,717.13 : x
  2. Step 2: Convert to fraction form
    13,249.80/18,274.11 = 8,717.13/x
  3. Step 3: Cross multiply
    13,249.80x = 18,274.11 × 8,717.13
  4. Step 4: Simplify right side
    13,249.80x = 159,297,792.50
  5. Step 5: Solve for x
    x = 159,297,792.50/13,249.80
  6. Step 6: Final answer
    x = 12,022.66

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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.