Home / 12,565.14-18,850.32-3,680.52

Finding the Fourth Proportional to 12,565.14, 18,850.32 and 3,680.52

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Solution

The fourth proportional to 12,565.14, 18,850.32 and 3,680.52 is: 5,521.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,565.14 : 18,850.32 = 3,680.52 : x
  2. Step 2: Convert to fraction form
    12,565.14/18,850.32 = 3,680.52/x
  3. Step 3: Cross multiply
    12,565.14x = 18,850.32 × 3,680.52
  4. Step 4: Simplify right side
    12,565.14x = 69,378,979.77
  5. Step 5: Solve for x
    x = 69,378,979.77/12,565.14
  6. Step 6: Final answer
    x = 5,521.54

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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.