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Finding the Fourth Proportional to 18,580.79, 27,872.98 and 5,254.22

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Solution

The fourth proportional to 18,580.79, 27,872.98 and 5,254.22 is: 7,881.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,580.79 : 27,872.98 = 5,254.22 : x
  2. Step 2: Convert to fraction form
    18,580.79/27,872.98 = 5,254.22/x
  3. Step 3: Cross multiply
    18,580.79x = 27,872.98 × 5,254.22
  4. Step 4: Simplify right side
    18,580.79x = 146,450,825.52
  5. Step 5: Solve for x
    x = 146,450,825.52/18,580.79
  6. Step 6: Final answer
    x = 7,881.84

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.