Home / 13,801.08-19,045.68-8,211

Finding the Fourth Proportional to 13,801.08, 19,045.68 and 8,211

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Solution

The fourth proportional to 13,801.08, 19,045.68 and 8,211 is: 11,331.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,801.08 : 19,045.68 = 8,211 : x
  2. Step 2: Convert to fraction form
    13,801.08/19,045.68 = 8,211/x
  3. Step 3: Cross multiply
    13,801.08x = 19,045.68 × 8,211
  4. Step 4: Simplify right side
    13,801.08x = 156,384,078.48
  5. Step 5: Solve for x
    x = 156,384,078.48/13,801.08
  6. Step 6: Final answer
    x = 11,331.29

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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.