Home / 12,156.48-18,230.40-3,834

Finding the Fourth Proportional to 12,156.48, 18,230.40 and 3,834

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Solution

The fourth proportional to 12,156.48, 18,230.40 and 3,834 is: 5,749.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,156.48 : 18,230.40 = 3,834 : x
  2. Step 2: Convert to fraction form
    12,156.48/18,230.40 = 3,834/x
  3. Step 3: Cross multiply
    12,156.48x = 18,230.40 × 3,834
  4. Step 4: Simplify right side
    12,156.48x = 69,895,353.60
  5. Step 5: Solve for x
    x = 69,895,353.60/12,156.48
  6. Step 6: Final answer
    x = 5,749.64

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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.