Home / 13,949.47-20,903.43-7,711.27

Finding the Fourth Proportional to 13,949.47, 20,903.43 and 7,711.27

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Solution

The fourth proportional to 13,949.47, 20,903.43 and 7,711.27 is: 11,555.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,949.47 : 20,903.43 = 7,711.27 : x
  2. Step 2: Convert to fraction form
    13,949.47/20,903.43 = 7,711.27/x
  3. Step 3: Cross multiply
    13,949.47x = 20,903.43 × 7,711.27
  4. Step 4: Simplify right side
    13,949.47x = 161,191,992.66
  5. Step 5: Solve for x
    x = 161,191,992.66/13,949.47
  6. Step 6: Final answer
    x = 11,555.42

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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.