Home / 13,756.82-20,621.10-5,433.47

Finding the Fourth Proportional to 13,756.82, 20,621.10 and 5,433.47

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Solution

The fourth proportional to 13,756.82, 20,621.10 and 5,433.47 is: 8,144.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,756.82 : 20,621.10 = 5,433.47 : x
  2. Step 2: Convert to fraction form
    13,756.82/20,621.10 = 5,433.47/x
  3. Step 3: Cross multiply
    13,756.82x = 20,621.10 × 5,433.47
  4. Step 4: Simplify right side
    13,756.82x = 112,044,025.11
  5. Step 5: Solve for x
    x = 112,044,025.11/13,756.82
  6. Step 6: Final answer
    x = 8,144.62

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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.