Home / 13,756.96-20,621.44-5,425.53

Finding the Fourth Proportional to 13,756.96, 20,621.44 and 5,425.53

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Solution

The fourth proportional to 13,756.96, 20,621.44 and 5,425.53 is: 8,132.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,756.96 : 20,621.44 = 5,425.53 : x
  2. Step 2: Convert to fraction form
    13,756.96/20,621.44 = 5,425.53/x
  3. Step 3: Cross multiply
    13,756.96x = 20,621.44 × 5,425.53
  4. Step 4: Simplify right side
    13,756.96x = 111,882,241.36
  5. Step 5: Solve for x
    x = 111,882,241.36/13,756.96
  6. Step 6: Final answer
    x = 8,132.77

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1.5x scale

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.