Home / 10,226.21-15,339.32-3,206.78

Finding the Fourth Proportional to 10,226.21, 15,339.32 and 3,206.78

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Solution

The fourth proportional to 10,226.21, 15,339.32 and 3,206.78 is: 4,810.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,226.21 : 15,339.32 = 3,206.78 : x
  2. Step 2: Convert to fraction form
    10,226.21/15,339.32 = 3,206.78/x
  3. Step 3: Cross multiply
    10,226.21x = 15,339.32 × 3,206.78
  4. Step 4: Simplify right side
    10,226.21x = 49,189,731.86
  5. Step 5: Solve for x
    x = 49,189,731.86/10,226.21
  6. Step 6: Final answer
    x = 4,810.16

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Similar ratio
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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.