Home / 13,938.84-20,908.32-4,711.32

Finding the Fourth Proportional to 13,938.84, 20,908.32 and 4,711.32

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Solution

The fourth proportional to 13,938.84, 20,908.32 and 4,711.32 is: 7,067.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,938.84 : 20,908.32 = 4,711.32 : x
  2. Step 2: Convert to fraction form
    13,938.84/20,908.32 = 4,711.32/x
  3. Step 3: Cross multiply
    13,938.84x = 20,908.32 × 4,711.32
  4. Step 4: Simplify right side
    13,938.84x = 98,505,786.18
  5. Step 5: Solve for x
    x = 98,505,786.18/13,938.84
  6. Step 6: Final answer
    x = 7,067.00

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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.