Home / 11,466.25-15,819.87-6,429.77

Finding the Fourth Proportional to 11,466.25, 15,819.87 and 6,429.77

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Solution

The fourth proportional to 11,466.25, 15,819.87 and 6,429.77 is: 8,871.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,466.25 : 15,819.87 = 6,429.77 : x
  2. Step 2: Convert to fraction form
    11,466.25/15,819.87 = 6,429.77/x
  3. Step 3: Cross multiply
    11,466.25x = 15,819.87 × 6,429.77
  4. Step 4: Simplify right side
    11,466.25x = 101,718,125.53
  5. Step 5: Solve for x
    x = 101,718,125.53/11,466.25
  6. Step 6: Final answer
    x = 8,871.09

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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.