Home / 13,711.14-20,539.31-6,305.45

Finding the Fourth Proportional to 13,711.14, 20,539.31 and 6,305.45

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Solution

The fourth proportional to 13,711.14, 20,539.31 and 6,305.45 is: 9,445.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,711.14 : 20,539.31 = 6,305.45 : x
  2. Step 2: Convert to fraction form
    13,711.14/20,539.31 = 6,305.45/x
  3. Step 3: Cross multiply
    13,711.14x = 20,539.31 × 6,305.45
  4. Step 4: Simplify right side
    13,711.14x = 129,509,458.02
  5. Step 5: Solve for x
    x = 129,509,458.02/13,711.14
  6. Step 6: Final answer
    x = 9,445.56

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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.