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Finding the Fourth Proportional to 8,696.48, 12,000.35 and 4,919.99

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Solution

The fourth proportional to 8,696.48, 12,000.35 and 4,919.99 is: 6,789.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,696.48 : 12,000.35 = 4,919.99 : x
  2. Step 2: Convert to fraction form
    8,696.48/12,000.35 = 4,919.99/x
  3. Step 3: Cross multiply
    8,696.48x = 12,000.35 × 4,919.99
  4. Step 4: Simplify right side
    8,696.48x = 59,041,644.30
  5. Step 5: Solve for x
    x = 59,041,644.30/8,696.48
  6. Step 6: Final answer
    x = 6,789.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.