Home / 13,966.66-20,945.31-7,388.98

Finding the Fourth Proportional to 13,966.66, 20,945.31 and 7,388.98

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Solution

The fourth proportional to 13,966.66, 20,945.31 and 7,388.98 is: 11,080.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,966.66 : 20,945.31 = 7,388.98 : x
  2. Step 2: Convert to fraction form
    13,966.66/20,945.31 = 7,388.98/x
  3. Step 3: Cross multiply
    13,966.66x = 20,945.31 × 7,388.98
  4. Step 4: Simplify right side
    13,966.66x = 154,764,476.68
  5. Step 5: Solve for x
    x = 154,764,476.68/13,966.66
  6. Step 6: Final answer
    x = 11,080.99

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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.