Home / 13,908.32-20,844.96-9,938.90

Finding the Fourth Proportional to 13,908.32, 20,844.96 and 9,938.90

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Solution

The fourth proportional to 13,908.32, 20,844.96 and 9,938.90 is: 14,895.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,908.32 : 20,844.96 = 9,938.90 : x
  2. Step 2: Convert to fraction form
    13,908.32/20,844.96 = 9,938.90/x
  3. Step 3: Cross multiply
    13,908.32x = 20,844.96 × 9,938.90
  4. Step 4: Simplify right side
    13,908.32x = 207,175,972.94
  5. Step 5: Solve for x
    x = 207,175,972.94/13,908.32
  6. Step 6: Final answer
    x = 14,895.83

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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.