Home / 18,122.47-24,997.96-11,990.17

Finding the Fourth Proportional to 18,122.47, 24,997.96 and 11,990.17

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Solution

The fourth proportional to 18,122.47, 24,997.96 and 11,990.17 is: 16,539.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,122.47 : 24,997.96 = 11,990.17 : x
  2. Step 2: Convert to fraction form
    18,122.47/24,997.96 = 11,990.17/x
  3. Step 3: Cross multiply
    18,122.47x = 24,997.96 × 11,990.17
  4. Step 4: Simplify right side
    18,122.47x = 299,729,628.23
  5. Step 5: Solve for x
    x = 299,729,628.23/18,122.47
  6. Step 6: Final answer
    x = 16,539.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.