Home / 13,424.28-20,138.04-3,563.82

Finding the Fourth Proportional to 13,424.28, 20,138.04 and 3,563.82

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Solution

The fourth proportional to 13,424.28, 20,138.04 and 3,563.82 is: 5,346.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,424.28 : 20,138.04 = 3,563.82 : x
  2. Step 2: Convert to fraction form
    13,424.28/20,138.04 = 3,563.82/x
  3. Step 3: Cross multiply
    13,424.28x = 20,138.04 × 3,563.82
  4. Step 4: Simplify right side
    13,424.28x = 71,768,349.71
  5. Step 5: Solve for x
    x = 71,768,349.71/13,424.28
  6. Step 6: Final answer
    x = 5,346.16

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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.