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Finding the Fourth Proportional to 18,494, 25,521.81 and 10,110.50

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Solution

The fourth proportional to 18,494, 25,521.81 and 10,110.50 is: 13,952.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,494 : 25,521.81 = 10,110.50 : x
  2. Step 2: Convert to fraction form
    18,494/25,521.81 = 10,110.50/x
  3. Step 3: Cross multiply
    18,494x = 25,521.81 × 10,110.50
  4. Step 4: Simplify right side
    18,494x = 258,038,260.01
  5. Step 5: Solve for x
    x = 258,038,260.01/18,494
  6. Step 6: Final answer
    x = 13,952.54

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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.