Home / 18,768.58-28,152.88-6,286.30

Finding the Fourth Proportional to 18,768.58, 28,152.88 and 6,286.30

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Solution

The fourth proportional to 18,768.58, 28,152.88 and 6,286.30 is: 9,429.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,768.58 : 28,152.88 = 6,286.30 : x
  2. Step 2: Convert to fraction form
    18,768.58/28,152.88 = 6,286.30/x
  3. Step 3: Cross multiply
    18,768.58x = 28,152.88 × 6,286.30
  4. Step 4: Simplify right side
    18,768.58x = 176,977,449.54
  5. Step 5: Solve for x
    x = 176,977,449.54/18,768.58
  6. Step 6: Final answer
    x = 9,429.45

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Similar ratio
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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.