Home / 18,735.04-28,081.68-8,345.44

Finding the Fourth Proportional to 18,735.04, 28,081.68 and 8,345.44

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Solution

The fourth proportional to 18,735.04, 28,081.68 and 8,345.44 is: 12,508.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,735.04 : 28,081.68 = 8,345.44 : x
  2. Step 2: Convert to fraction form
    18,735.04/28,081.68 = 8,345.44/x
  3. Step 3: Cross multiply
    18,735.04x = 28,081.68 × 8,345.44
  4. Step 4: Simplify right side
    18,735.04x = 234,353,975.54
  5. Step 5: Solve for x
    x = 234,353,975.54/18,735.04
  6. Step 6: Final answer
    x = 12,508.86

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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.