Home / 12,885.32-19,329.66-3,651.56

Finding the Fourth Proportional to 12,885.32, 19,329.66 and 3,651.56

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Solution

The fourth proportional to 12,885.32, 19,329.66 and 3,651.56 is: 5,477.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,885.32 : 19,329.66 = 3,651.56 : x
  2. Step 2: Convert to fraction form
    12,885.32/19,329.66 = 3,651.56/x
  3. Step 3: Cross multiply
    12,885.32x = 19,329.66 × 3,651.56
  4. Step 4: Simplify right side
    12,885.32x = 70,583,413.27
  5. Step 5: Solve for x
    x = 70,583,413.27/12,885.32
  6. Step 6: Final answer
    x = 5,477.82

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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.