Home / 13,718.78-20,579.99-6,324.92

Finding the Fourth Proportional to 13,718.78, 20,579.99 and 6,324.92

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Solution

The fourth proportional to 13,718.78, 20,579.99 and 6,324.92 is: 9,488.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,718.78 : 20,579.99 = 6,324.92 : x
  2. Step 2: Convert to fraction form
    13,718.78/20,579.99 = 6,324.92/x
  3. Step 3: Cross multiply
    13,718.78x = 20,579.99 × 6,324.92
  4. Step 4: Simplify right side
    13,718.78x = 130,166,790.35
  5. Step 5: Solve for x
    x = 130,166,790.35/13,718.78
  6. Step 6: Final answer
    x = 9,488.22

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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.