Home / 13,272.62-18,299.85-12,157.16

Finding the Fourth Proportional to 13,272.62, 18,299.85 and 12,157.16

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Solution

The fourth proportional to 13,272.62, 18,299.85 and 12,157.16 is: 16,761.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,272.62 : 18,299.85 = 12,157.16 : x
  2. Step 2: Convert to fraction form
    13,272.62/18,299.85 = 12,157.16/x
  3. Step 3: Cross multiply
    13,272.62x = 18,299.85 × 12,157.16
  4. Step 4: Simplify right side
    13,272.62x = 222,474,204.43
  5. Step 5: Solve for x
    x = 222,474,204.43/13,272.62
  6. Step 6: Final answer
    x = 16,761.89

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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.