Home / 11,693.84-16,137.48-6,388.65

Finding the Fourth Proportional to 11,693.84, 16,137.48 and 6,388.65

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Solution

The fourth proportional to 11,693.84, 16,137.48 and 6,388.65 is: 8,816.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,693.84 : 16,137.48 = 6,388.65 : x
  2. Step 2: Convert to fraction form
    11,693.84/16,137.48 = 6,388.65/x
  3. Step 3: Cross multiply
    11,693.84x = 16,137.48 × 6,388.65
  4. Step 4: Simplify right side
    11,693.84x = 103,096,711.60
  5. Step 5: Solve for x
    x = 103,096,711.60/11,693.84
  6. Step 6: Final answer
    x = 8,816.33

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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.