Home / 18,867.74-28,296.74-5,716.58

Finding the Fourth Proportional to 18,867.74, 28,296.74 and 5,716.58

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Solution

The fourth proportional to 18,867.74, 28,296.74 and 5,716.58 is: 8,573.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,867.74 : 28,296.74 = 5,716.58 : x
  2. Step 2: Convert to fraction form
    18,867.74/28,296.74 = 5,716.58/x
  3. Step 3: Cross multiply
    18,867.74x = 28,296.74 × 5,716.58
  4. Step 4: Simplify right side
    18,867.74x = 161,760,450.76
  5. Step 5: Solve for x
    x = 161,760,450.76/18,867.74
  6. Step 6: Final answer
    x = 8,573.39

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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.