Home / 18,161.86-27,226.35-12,617.80

Finding the Fourth Proportional to 18,161.86, 27,226.35 and 12,617.80

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Solution

The fourth proportional to 18,161.86, 27,226.35 and 12,617.80 is: 18,915.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,161.86 : 27,226.35 = 12,617.80 : x
  2. Step 2: Convert to fraction form
    18,161.86/27,226.35 = 12,617.80/x
  3. Step 3: Cross multiply
    18,161.86x = 27,226.35 × 12,617.80
  4. Step 4: Simplify right side
    18,161.86x = 343,536,639.03
  5. Step 5: Solve for x
    x = 343,536,639.03/18,161.86
  6. Step 6: Final answer
    x = 18,915.28

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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.