Home / 13,756.76-20,634.87-3,368.51

Finding the Fourth Proportional to 13,756.76, 20,634.87 and 3,368.51

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Solution

The fourth proportional to 13,756.76, 20,634.87 and 3,368.51 is: 5,052.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,756.76 : 20,634.87 = 3,368.51 : x
  2. Step 2: Convert to fraction form
    13,756.76/20,634.87 = 3,368.51/x
  3. Step 3: Cross multiply
    13,756.76x = 20,634.87 × 3,368.51
  4. Step 4: Simplify right side
    13,756.76x = 69,508,765.94
  5. Step 5: Solve for x
    x = 69,508,765.94/13,756.76
  6. Step 6: Final answer
    x = 5,052.70

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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.