Home / 13,452.21-20,178.28-6,410.88

Finding the Fourth Proportional to 13,452.21, 20,178.28 and 6,410.88

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Solution

The fourth proportional to 13,452.21, 20,178.28 and 6,410.88 is: 9,616.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,452.21 : 20,178.28 = 6,410.88 : x
  2. Step 2: Convert to fraction form
    13,452.21/20,178.28 = 6,410.88/x
  3. Step 3: Cross multiply
    13,452.21x = 20,178.28 × 6,410.88
  4. Step 4: Simplify right side
    13,452.21x = 129,360,539.70
  5. Step 5: Solve for x
    x = 129,360,539.70/13,452.21
  6. Step 6: Final answer
    x = 9,616.30

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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.