Home / 18,608.45-27,908.96-9,116.69

Finding the Fourth Proportional to 18,608.45, 27,908.96 and 9,116.69

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Solution

The fourth proportional to 18,608.45, 27,908.96 and 9,116.69 is: 13,673.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,608.45 : 27,908.96 = 9,116.69 : x
  2. Step 2: Convert to fraction form
    18,608.45/27,908.96 = 9,116.69/x
  3. Step 3: Cross multiply
    18,608.45x = 27,908.96 × 9,116.69
  4. Step 4: Simplify right side
    18,608.45x = 254,437,151.41
  5. Step 5: Solve for x
    x = 254,437,151.41/18,608.45
  6. Step 6: Final answer
    x = 13,673.21

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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.