Home / 13,697.28-20,536.48-7,037.76

Finding the Fourth Proportional to 13,697.28, 20,536.48 and 7,037.76

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Solution

The fourth proportional to 13,697.28, 20,536.48 and 7,037.76 is: 10,551.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,697.28 : 20,536.48 = 7,037.76 : x
  2. Step 2: Convert to fraction form
    13,697.28/20,536.48 = 7,037.76/x
  3. Step 3: Cross multiply
    13,697.28x = 20,536.48 × 7,037.76
  4. Step 4: Simplify right side
    13,697.28x = 144,530,817.48
  5. Step 5: Solve for x
    x = 144,530,817.48/13,697.28
  6. Step 6: Final answer
    x = 10,551.79

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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.