Home / 18,711.27-28,066.64-5,384.58

Finding the Fourth Proportional to 18,711.27, 28,066.64 and 5,384.58

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Solution

The fourth proportional to 18,711.27, 28,066.64 and 5,384.58 is: 8,076.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711.27 : 28,066.64 = 5,384.58 : x
  2. Step 2: Convert to fraction form
    18,711.27/28,066.64 = 5,384.58/x
  3. Step 3: Cross multiply
    18,711.27x = 28,066.64 × 5,384.58
  4. Step 4: Simplify right side
    18,711.27x = 151,126,936.24
  5. Step 5: Solve for x
    x = 151,126,936.24/18,711.27
  6. Step 6: Final answer
    x = 8,076.79

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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.