Home / 13,691.28-20,536.86-3,303

Finding the Fourth Proportional to 13,691.28, 20,536.86 and 3,303

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Solution

The fourth proportional to 13,691.28, 20,536.86 and 3,303 is: 4,954.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,691.28 : 20,536.86 = 3,303 : x
  2. Step 2: Convert to fraction form
    13,691.28/20,536.86 = 3,303/x
  3. Step 3: Cross multiply
    13,691.28x = 20,536.86 × 3,303
  4. Step 4: Simplify right side
    13,691.28x = 67,833,248.58
  5. Step 5: Solve for x
    x = 67,833,248.58/13,691.28
  6. Step 6: Final answer
    x = 4,954.49

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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.