Home / 11,179.82-15,427.26-6,143.94

Finding the Fourth Proportional to 11,179.82, 15,427.26 and 6,143.94

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Solution

The fourth proportional to 11,179.82, 15,427.26 and 6,143.94 is: 8,478.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,179.82 : 15,427.26 = 6,143.94 : x
  2. Step 2: Convert to fraction form
    11,179.82/15,427.26 = 6,143.94/x
  3. Step 3: Cross multiply
    11,179.82x = 15,427.26 × 6,143.94
  4. Step 4: Simplify right side
    11,179.82x = 94,784,159.80
  5. Step 5: Solve for x
    x = 94,784,159.80/11,179.82
  6. Step 6: Final answer
    x = 8,478.15

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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.