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Finding the Fourth Proportional to 18,360.48, 25,337.62 and 9,976.98

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Solution

The fourth proportional to 18,360.48, 25,337.62 and 9,976.98 is: 13,768.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,360.48 : 25,337.62 = 9,976.98 : x
  2. Step 2: Convert to fraction form
    18,360.48/25,337.62 = 9,976.98/x
  3. Step 3: Cross multiply
    18,360.48x = 25,337.62 × 9,976.98
  4. Step 4: Simplify right side
    18,360.48x = 252,792,927.99
  5. Step 5: Solve for x
    x = 252,792,927.99/18,360.48
  6. Step 6: Final answer
    x = 13,768.32

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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.