Home / 18,867.82-28,298.58-5,717.06

Finding the Fourth Proportional to 18,867.82, 28,298.58 and 5,717.06

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Solution

The fourth proportional to 18,867.82, 28,298.58 and 5,717.06 is: 8,574.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,867.82 : 28,298.58 = 5,717.06 : x
  2. Step 2: Convert to fraction form
    18,867.82/28,298.58 = 5,717.06/x
  3. Step 3: Cross multiply
    18,867.82x = 28,298.58 × 5,717.06
  4. Step 4: Simplify right side
    18,867.82x = 161,784,679.77
  5. Step 5: Solve for x
    x = 161,784,679.77/18,867.82
  6. Step 6: Final answer
    x = 8,574.64

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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.