Home / 12,157.29-18,237.96-3,835.35

Finding the Fourth Proportional to 12,157.29, 18,237.96 and 3,835.35

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Solution

The fourth proportional to 12,157.29, 18,237.96 and 3,835.35 is: 5,753.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,157.29 : 18,237.96 = 3,835.35 : x
  2. Step 2: Convert to fraction form
    12,157.29/18,237.96 = 3,835.35/x
  3. Step 3: Cross multiply
    12,157.29x = 18,237.96 × 3,835.35
  4. Step 4: Simplify right side
    12,157.29x = 69,948,959.89
  5. Step 5: Solve for x
    x = 69,948,959.89/12,157.29
  6. Step 6: Final answer
    x = 5,753.66

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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.