Home / 12,236.56-18,357.84-3,916.60

Finding the Fourth Proportional to 12,236.56, 18,357.84 and 3,916.60

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Solution

The fourth proportional to 12,236.56, 18,357.84 and 3,916.60 is: 5,875.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,236.56 : 18,357.84 = 3,916.60 : x
  2. Step 2: Convert to fraction form
    12,236.56/18,357.84 = 3,916.60/x
  3. Step 3: Cross multiply
    12,236.56x = 18,357.84 × 3,916.60
  4. Step 4: Simplify right side
    12,236.56x = 71,900,316.14
  5. Step 5: Solve for x
    x = 71,900,316.14/12,236.56
  6. Step 6: Final answer
    x = 5,875.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.