Home / 13,928.20-19,230.42-9,737.80

Finding the Fourth Proportional to 13,928.20, 19,230.42 and 9,737.80

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Solution

The fourth proportional to 13,928.20, 19,230.42 and 9,737.80 is: 13,444.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,928.20 : 19,230.42 = 9,737.80 : x
  2. Step 2: Convert to fraction form
    13,928.20/19,230.42 = 9,737.80/x
  3. Step 3: Cross multiply
    13,928.20x = 19,230.42 × 9,737.80
  4. Step 4: Simplify right side
    13,928.20x = 187,261,983.88
  5. Step 5: Solve for x
    x = 187,261,983.88/13,928.20
  6. Step 6: Final answer
    x = 13,444.81

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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.