Home / 14,759.84-20,396.40-11,640.80

Finding the Fourth Proportional to 14,759.84, 20,396.40 and 11,640.80

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Solution

The fourth proportional to 14,759.84, 20,396.40 and 11,640.80 is: 16,086.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,759.84 : 20,396.40 = 11,640.80 : x
  2. Step 2: Convert to fraction form
    14,759.84/20,396.40 = 11,640.80/x
  3. Step 3: Cross multiply
    14,759.84x = 20,396.40 × 11,640.80
  4. Step 4: Simplify right side
    14,759.84x = 237,430,413.12
  5. Step 5: Solve for x
    x = 237,430,413.12/14,759.84
  6. Step 6: Final answer
    x = 16,086.25

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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.