Home / 18,755.64-28,145.88-9,996.84

Finding the Fourth Proportional to 18,755.64, 28,145.88 and 9,996.84

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Solution

The fourth proportional to 18,755.64, 28,145.88 and 9,996.84 is: 15,001.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,755.64 : 28,145.88 = 9,996.84 : x
  2. Step 2: Convert to fraction form
    18,755.64/28,145.88 = 9,996.84/x
  3. Step 3: Cross multiply
    18,755.64x = 28,145.88 × 9,996.84
  4. Step 4: Simplify right side
    18,755.64x = 281,369,859.02
  5. Step 5: Solve for x
    x = 281,369,859.02/18,755.64
  6. Step 6: Final answer
    x = 15,001.88

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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.