Home / 14,286.40-21,413.04-8,447.92

Finding the Fourth Proportional to 14,286.40, 21,413.04 and 8,447.92

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Solution

The fourth proportional to 14,286.40, 21,413.04 and 8,447.92 is: 12,662.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,286.40 : 21,413.04 = 8,447.92 : x
  2. Step 2: Convert to fraction form
    14,286.40/21,413.04 = 8,447.92/x
  3. Step 3: Cross multiply
    14,286.40x = 21,413.04 × 8,447.92
  4. Step 4: Simplify right side
    14,286.40x = 180,895,648.88
  5. Step 5: Solve for x
    x = 180,895,648.88/14,286.40
  6. Step 6: Final answer
    x = 12,662.09

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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.