Home / 8,236.18-11,365.21-4,878.39

Finding the Fourth Proportional to 8,236.18, 11,365.21 and 4,878.39

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Solution

The fourth proportional to 8,236.18, 11,365.21 and 4,878.39 is: 6,731.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,236.18 : 11,365.21 = 4,878.39 : x
  2. Step 2: Convert to fraction form
    8,236.18/11,365.21 = 4,878.39/x
  3. Step 3: Cross multiply
    8,236.18x = 11,365.21 × 4,878.39
  4. Step 4: Simplify right side
    8,236.18x = 55,443,975.53
  5. Step 5: Solve for x
    x = 55,443,975.53/8,236.18
  6. Step 6: Final answer
    x = 6,731.76

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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.