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Finding the Fourth Proportional to 18,036, 24,887.94 and 11,319.48

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Solution

The fourth proportional to 18,036, 24,887.94 and 11,319.48 is: 15,619.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,036 : 24,887.94 = 11,319.48 : x
  2. Step 2: Convert to fraction form
    18,036/24,887.94 = 11,319.48/x
  3. Step 3: Cross multiply
    18,036x = 24,887.94 × 11,319.48
  4. Step 4: Simplify right side
    18,036x = 281,718,539.07
  5. Step 5: Solve for x
    x = 281,718,539.07/18,036
  6. Step 6: Final answer
    x = 15,619.79

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1.5x scale

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.