Home / 11,147.37-15,382.96-6,111.48

Finding the Fourth Proportional to 11,147.37, 15,382.96 and 6,111.48

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Solution

The fourth proportional to 11,147.37, 15,382.96 and 6,111.48 is: 8,433.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,147.37 : 15,382.96 = 6,111.48 : x
  2. Step 2: Convert to fraction form
    11,147.37/15,382.96 = 6,111.48/x
  3. Step 3: Cross multiply
    11,147.37x = 15,382.96 × 6,111.48
  4. Step 4: Simplify right side
    11,147.37x = 94,012,652.38
  5. Step 5: Solve for x
    x = 94,012,652.38/11,147.37
  6. Step 6: Final answer
    x = 8,433.62

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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.