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Finding the Fourth Proportional to 18,579.87, 25,638.51 and 11,024.89

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Solution

The fourth proportional to 18,579.87, 25,638.51 and 11,024.89 is: 15,213.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,579.87 : 25,638.51 = 11,024.89 : x
  2. Step 2: Convert to fraction form
    18,579.87/25,638.51 = 11,024.89/x
  3. Step 3: Cross multiply
    18,579.87x = 25,638.51 × 11,024.89
  4. Step 4: Simplify right side
    18,579.87x = 282,661,752.51
  5. Step 5: Solve for x
    x = 282,661,752.51/18,579.87
  6. Step 6: Final answer
    x = 15,213.34

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