Home / 13,928.64-20,873.31-7,691.46

Finding the Fourth Proportional to 13,928.64, 20,873.31 and 7,691.46

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Solution

The fourth proportional to 13,928.64, 20,873.31 and 7,691.46 is: 11,526.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,928.64 : 20,873.31 = 7,691.46 : x
  2. Step 2: Convert to fraction form
    13,928.64/20,873.31 = 7,691.46/x
  3. Step 3: Cross multiply
    13,928.64x = 20,873.31 × 7,691.46
  4. Step 4: Simplify right side
    13,928.64x = 160,546,150.66
  5. Step 5: Solve for x
    x = 160,546,150.66/13,928.64
  6. Step 6: Final answer
    x = 11,526.34

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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.