Home / 8,618.39-12,927.63-3,424.28

Finding the Fourth Proportional to 8,618.39, 12,927.63 and 3,424.28

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Solution

The fourth proportional to 8,618.39, 12,927.63 and 3,424.28 is: 5,136.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,618.39 : 12,927.63 = 3,424.28 : x
  2. Step 2: Convert to fraction form
    8,618.39/12,927.63 = 3,424.28/x
  3. Step 3: Cross multiply
    8,618.39x = 12,927.63 × 3,424.28
  4. Step 4: Simplify right side
    8,618.39x = 44,267,824.86
  5. Step 5: Solve for x
    x = 44,267,824.86/8,618.39
  6. Step 6: Final answer
    x = 5,136.44

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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.