Home / 8,270.01-12,400.45-4,311.39

Finding the Fourth Proportional to 8,270.01, 12,400.45 and 4,311.39

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Solution

The fourth proportional to 8,270.01, 12,400.45 and 4,311.39 is: 6,464.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,270.01 : 12,400.45 = 4,311.39 : x
  2. Step 2: Convert to fraction form
    8,270.01/12,400.45 = 4,311.39/x
  3. Step 3: Cross multiply
    8,270.01x = 12,400.45 × 4,311.39
  4. Step 4: Simplify right side
    8,270.01x = 53,463,176.13
  5. Step 5: Solve for x
    x = 53,463,176.13/8,270.01
  6. Step 6: Final answer
    x = 6,464.71

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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.