Home / 13,811.54-20,724.44-7,574.45

Finding the Fourth Proportional to 13,811.54, 20,724.44 and 7,574.45

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Solution

The fourth proportional to 13,811.54, 20,724.44 and 7,574.45 is: 11,365.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,811.54 : 20,724.44 = 7,574.45 : x
  2. Step 2: Convert to fraction form
    13,811.54/20,724.44 = 7,574.45/x
  3. Step 3: Cross multiply
    13,811.54x = 20,724.44 × 7,574.45
  4. Step 4: Simplify right side
    13,811.54x = 156,976,093.06
  5. Step 5: Solve for x
    x = 156,976,093.06/13,811.54
  6. Step 6: Final answer
    x = 11,365.58

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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.