Home / 14,083.92-21,129.99-6,290.91

Finding the Fourth Proportional to 14,083.92, 21,129.99 and 6,290.91

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Solution

The fourth proportional to 14,083.92, 21,129.99 and 6,290.91 is: 9,438.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,083.92 : 21,129.99 = 6,290.91 : x
  2. Step 2: Convert to fraction form
    14,083.92/21,129.99 = 6,290.91/x
  3. Step 3: Cross multiply
    14,083.92x = 21,129.99 × 6,290.91
  4. Step 4: Simplify right side
    14,083.92x = 132,926,865.39
  5. Step 5: Solve for x
    x = 132,926,865.39/14,083.92
  6. Step 6: Final answer
    x = 9,438.20

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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.