Home / 11,147.08-15,383.09-6,111.19

Finding the Fourth Proportional to 11,147.08, 15,383.09 and 6,111.19

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Solution

The fourth proportional to 11,147.08, 15,383.09 and 6,111.19 is: 8,433.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,147.08 : 15,383.09 = 6,111.19 : x
  2. Step 2: Convert to fraction form
    11,147.08/15,383.09 = 6,111.19/x
  3. Step 3: Cross multiply
    11,147.08x = 15,383.09 × 6,111.19
  4. Step 4: Simplify right side
    11,147.08x = 94,008,985.78
  5. Step 5: Solve for x
    x = 94,008,985.78/11,147.08
  6. Step 6: Final answer
    x = 8,433.51

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Half scale
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Double scale
Find fourth proportional to 11,148.08, 15,384.47 and 6,112.19
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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.