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Finding the Fourth Proportional to 15,008.36, 22,505.94 and 7,986.68

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Solution

The fourth proportional to 15,008.36, 22,505.94 and 7,986.68 is: 11,976.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,008.36 : 22,505.94 = 7,986.68 : x
  2. Step 2: Convert to fraction form
    15,008.36/22,505.94 = 7,986.68/x
  3. Step 3: Cross multiply
    15,008.36x = 22,505.94 × 7,986.68
  4. Step 4: Simplify right side
    15,008.36x = 179,747,740.88
  5. Step 5: Solve for x
    x = 179,747,740.88/15,008.36
  6. Step 6: Final answer
    x = 11,976.51

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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.