Home / 18,239.15-27,354.75-4,911.81

Finding the Fourth Proportional to 18,239.15, 27,354.75 and 4,911.81

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Solution

The fourth proportional to 18,239.15, 27,354.75 and 4,911.81 is: 7,366.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,239.15 : 27,354.75 = 4,911.81 : x
  2. Step 2: Convert to fraction form
    18,239.15/27,354.75 = 4,911.81/x
  3. Step 3: Cross multiply
    18,239.15x = 27,354.75 × 4,911.81
  4. Step 4: Simplify right side
    18,239.15x = 134,361,334.60
  5. Step 5: Solve for x
    x = 134,361,334.60/18,239.15
  6. Step 6: Final answer
    x = 7,366.65

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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.