Home / 8,174.86-12,263.10-2,979.52

Finding the Fourth Proportional to 8,174.86, 12,263.10 and 2,979.52

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Solution

The fourth proportional to 8,174.86, 12,263.10 and 2,979.52 is: 4,469.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,174.86 : 12,263.10 = 2,979.52 : x
  2. Step 2: Convert to fraction form
    8,174.86/12,263.10 = 2,979.52/x
  3. Step 3: Cross multiply
    8,174.86x = 12,263.10 × 2,979.52
  4. Step 4: Simplify right side
    8,174.86x = 36,538,151.71
  5. Step 5: Solve for x
    x = 36,538,151.71/8,174.86
  6. Step 6: Final answer
    x = 4,469.58

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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.