Home / 8,178.66-12,267.36-2,913.47

Finding the Fourth Proportional to 8,178.66, 12,267.36 and 2,913.47

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Solution

The fourth proportional to 8,178.66, 12,267.36 and 2,913.47 is: 4,369.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,178.66 : 12,267.36 = 2,913.47 : x
  2. Step 2: Convert to fraction form
    8,178.66/12,267.36 = 2,913.47/x
  3. Step 3: Cross multiply
    8,178.66x = 12,267.36 × 2,913.47
  4. Step 4: Simplify right side
    8,178.66x = 35,740,524.00
  5. Step 5: Solve for x
    x = 35,740,524.00/8,178.66
  6. Step 6: Final answer
    x = 4,369.97

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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.