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Finding the Fourth Proportional to 18,187.74, 27,278.56 and 5,041.44

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Solution

The fourth proportional to 18,187.74, 27,278.56 and 5,041.44 is: 7,561.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,187.74 : 27,278.56 = 5,041.44 : x
  2. Step 2: Convert to fraction form
    18,187.74/27,278.56 = 5,041.44/x
  3. Step 3: Cross multiply
    18,187.74x = 27,278.56 × 5,041.44
  4. Step 4: Simplify right side
    18,187.74x = 137,523,223.53
  5. Step 5: Solve for x
    x = 137,523,223.53/18,187.74
  6. Step 6: Final answer
    x = 7,561.31

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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.