Home / 14,789.24-20,406.18-9,413.84

Finding the Fourth Proportional to 14,789.24, 20,406.18 and 9,413.84

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Solution

The fourth proportional to 14,789.24, 20,406.18 and 9,413.84 is: 12,989.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,789.24 : 20,406.18 = 9,413.84 : x
  2. Step 2: Convert to fraction form
    14,789.24/20,406.18 = 9,413.84/x
  3. Step 3: Cross multiply
    14,789.24x = 20,406.18 × 9,413.84
  4. Step 4: Simplify right side
    14,789.24x = 192,100,513.53
  5. Step 5: Solve for x
    x = 192,100,513.53/14,789.24
  6. Step 6: Final answer
    x = 12,989.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.