Home / 11,487.86-15,852.79-6,383.24

Finding the Fourth Proportional to 11,487.86, 15,852.79 and 6,383.24

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Solution

The fourth proportional to 11,487.86, 15,852.79 and 6,383.24 is: 8,808.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,487.86 : 15,852.79 = 6,383.24 : x
  2. Step 2: Convert to fraction form
    11,487.86/15,852.79 = 6,383.24/x
  3. Step 3: Cross multiply
    11,487.86x = 15,852.79 × 6,383.24
  4. Step 4: Simplify right side
    11,487.86x = 101,192,163.24
  5. Step 5: Solve for x
    x = 101,192,163.24/11,487.86
  6. Step 6: Final answer
    x = 8,808.62

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Half scale
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Double scale
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Similar ratio
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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.