Home / 11,179.38-15,427.53-6,143.92

Finding the Fourth Proportional to 11,179.38, 15,427.53 and 6,143.92

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Solution

The fourth proportional to 11,179.38, 15,427.53 and 6,143.92 is: 8,478.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,179.38 : 15,427.53 = 6,143.92 : x
  2. Step 2: Convert to fraction form
    11,179.38/15,427.53 = 6,143.92/x
  3. Step 3: Cross multiply
    11,179.38x = 15,427.53 × 6,143.92
  4. Step 4: Simplify right side
    11,179.38x = 94,785,510.12
  5. Step 5: Solve for x
    x = 94,785,510.12/11,179.38
  6. Step 6: Final answer
    x = 8,478.60

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Half scale
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Double scale
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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.