Home / 18,147.18-27,231.24-7,616.25

Finding the Fourth Proportional to 18,147.18, 27,231.24 and 7,616.25

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Solution

The fourth proportional to 18,147.18, 27,231.24 and 7,616.25 is: 11,428.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,147.18 : 27,231.24 = 7,616.25 : x
  2. Step 2: Convert to fraction form
    18,147.18/27,231.24 = 7,616.25/x
  3. Step 3: Cross multiply
    18,147.18x = 27,231.24 × 7,616.25
  4. Step 4: Simplify right side
    18,147.18x = 207,399,931.65
  5. Step 5: Solve for x
    x = 207,399,931.65/18,147.18
  6. Step 6: Final answer
    x = 11,428.77

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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.