Home / 8,108.66-12,176.88-5,007.02

Finding the Fourth Proportional to 8,108.66, 12,176.88 and 5,007.02

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Solution

The fourth proportional to 8,108.66, 12,176.88 and 5,007.02 is: 7,519.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,108.66 : 12,176.88 = 5,007.02 : x
  2. Step 2: Convert to fraction form
    8,108.66/12,176.88 = 5,007.02/x
  3. Step 3: Cross multiply
    8,108.66x = 12,176.88 × 5,007.02
  4. Step 4: Simplify right side
    8,108.66x = 60,969,830.20
  5. Step 5: Solve for x
    x = 60,969,830.20/8,108.66
  6. Step 6: Final answer
    x = 7,519.10

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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.