Home / 11,688.36-16,129.97-6,383.19

Finding the Fourth Proportional to 11,688.36, 16,129.97 and 6,383.19

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Solution

The fourth proportional to 11,688.36, 16,129.97 and 6,383.19 is: 8,808.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,688.36 : 16,129.97 = 6,383.19 : x
  2. Step 2: Convert to fraction form
    11,688.36/16,129.97 = 6,383.19/x
  3. Step 3: Cross multiply
    11,688.36x = 16,129.97 × 6,383.19
  4. Step 4: Simplify right side
    11,688.36x = 102,960,663.20
  5. Step 5: Solve for x
    x = 102,960,663.20/11,688.36
  6. Step 6: Final answer
    x = 8,808.82

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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.