Home / 11,483.35-15,845.79-6,448.12

Finding the Fourth Proportional to 11,483.35, 15,845.79 and 6,448.12

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Solution

The fourth proportional to 11,483.35, 15,845.79 and 6,448.12 is: 8,897.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,483.35 : 15,845.79 = 6,448.12 : x
  2. Step 2: Convert to fraction form
    11,483.35/15,845.79 = 6,448.12/x
  3. Step 3: Cross multiply
    11,483.35x = 15,845.79 × 6,448.12
  4. Step 4: Simplify right side
    11,483.35x = 102,175,555.41
  5. Step 5: Solve for x
    x = 102,175,555.41/11,483.35
  6. Step 6: Final answer
    x = 8,897.71

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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.