Home / 10,345.20-15,519.20-3,322.88

Finding the Fourth Proportional to 10,345.20, 15,519.20 and 3,322.88

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Solution

The fourth proportional to 10,345.20, 15,519.20 and 3,322.88 is: 4,984.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,345.20 : 15,519.20 = 3,322.88 : x
  2. Step 2: Convert to fraction form
    10,345.20/15,519.20 = 3,322.88/x
  3. Step 3: Cross multiply
    10,345.20x = 15,519.20 × 3,322.88
  4. Step 4: Simplify right side
    10,345.20x = 51,568,439.30
  5. Step 5: Solve for x
    x = 51,568,439.30/10,345.20
  6. Step 6: Final answer
    x = 4,984.77

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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.