Home / 11,179.54-15,428.03-6,143.44

Finding the Fourth Proportional to 11,179.54, 15,428.03 and 6,143.44

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Solution

The fourth proportional to 11,179.54, 15,428.03 and 6,143.44 is: 8,478.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,179.54 : 15,428.03 = 6,143.44 : x
  2. Step 2: Convert to fraction form
    11,179.54/15,428.03 = 6,143.44/x
  3. Step 3: Cross multiply
    11,179.54x = 15,428.03 × 6,143.44
  4. Step 4: Simplify right side
    11,179.54x = 94,781,176.62
  5. Step 5: Solve for x
    x = 94,781,176.62/11,179.54
  6. Step 6: Final answer
    x = 8,478.09

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1.5x scale

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.