Home / 18,153.08-27,217.76-7,629.82

Finding the Fourth Proportional to 18,153.08, 27,217.76 and 7,629.82

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Solution

The fourth proportional to 18,153.08, 27,217.76 and 7,629.82 is: 11,439.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,153.08 : 27,217.76 = 7,629.82 : x
  2. Step 2: Convert to fraction form
    18,153.08/27,217.76 = 7,629.82/x
  3. Step 3: Cross multiply
    18,153.08x = 27,217.76 × 7,629.82
  4. Step 4: Simplify right side
    18,153.08x = 207,666,609.60
  5. Step 5: Solve for x
    x = 207,666,609.60/18,153.08
  6. Step 6: Final answer
    x = 11,439.75

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1.5x scale

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.