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Finding the Fourth Proportional to 8,679.94, 13,007.44 and 4,934.70

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Solution

The fourth proportional to 8,679.94, 13,007.44 and 4,934.70 is: 7,394.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,679.94 : 13,007.44 = 4,934.70 : x
  2. Step 2: Convert to fraction form
    8,679.94/13,007.44 = 4,934.70/x
  3. Step 3: Cross multiply
    8,679.94x = 13,007.44 × 4,934.70
  4. Step 4: Simplify right side
    8,679.94x = 64,187,814.17
  5. Step 5: Solve for x
    x = 64,187,814.17/8,679.94
  6. Step 6: Final answer
    x = 7,394.96

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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.