Home / 12,237.56-18,359.34-3,917.60

Finding the Fourth Proportional to 12,237.56, 18,359.34 and 3,917.60

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Solution

The fourth proportional to 12,237.56, 18,359.34 and 3,917.60 is: 5,877.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,237.56 : 18,359.34 = 3,917.60 : x
  2. Step 2: Convert to fraction form
    12,237.56/18,359.34 = 3,917.60/x
  3. Step 3: Cross multiply
    12,237.56x = 18,359.34 × 3,917.60
  4. Step 4: Simplify right side
    12,237.56x = 71,924,550.38
  5. Step 5: Solve for x
    x = 71,924,550.38/12,237.56
  6. Step 6: Final answer
    x = 5,877.36

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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.