Home / 19,664.28-29,486.39-6,511.91

Finding the Fourth Proportional to 19,664.28, 29,486.39 and 6,511.91

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Solution

The fourth proportional to 19,664.28, 29,486.39 and 6,511.91 is: 9,764.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,664.28 : 29,486.39 = 6,511.91 : x
  2. Step 2: Convert to fraction form
    19,664.28/29,486.39 = 6,511.91/x
  3. Step 3: Cross multiply
    19,664.28x = 29,486.39 × 6,511.91
  4. Step 4: Simplify right side
    19,664.28x = 192,012,717.90
  5. Step 5: Solve for x
    x = 192,012,717.90/19,664.28
  6. Step 6: Final answer
    x = 9,764.54

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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.