Home / 18,685.56-27,996.63-11,274.45

Finding the Fourth Proportional to 18,685.56, 27,996.63 and 11,274.45

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Solution

The fourth proportional to 18,685.56, 27,996.63 and 11,274.45 is: 16,892.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,685.56 : 27,996.63 = 11,274.45 : x
  2. Step 2: Convert to fraction form
    18,685.56/27,996.63 = 11,274.45/x
  3. Step 3: Cross multiply
    18,685.56x = 27,996.63 × 11,274.45
  4. Step 4: Simplify right side
    18,685.56x = 315,646,562.82
  5. Step 5: Solve for x
    x = 315,646,562.82/18,685.56
  6. Step 6: Final answer
    x = 16,892.54

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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.