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Finding the Fourth Proportional to 17,618.70, 24,314.93 and 11,639.89

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Solution

The fourth proportional to 17,618.70, 24,314.93 and 11,639.89 is: 16,063.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,618.70 : 24,314.93 = 11,639.89 : x
  2. Step 2: Convert to fraction form
    17,618.70/24,314.93 = 11,639.89/x
  3. Step 3: Cross multiply
    17,618.70x = 24,314.93 × 11,639.89
  4. Step 4: Simplify right side
    17,618.70x = 283,023,110.56
  5. Step 5: Solve for x
    x = 283,023,110.56/17,618.70
  6. Step 6: Final answer
    x = 16,063.79

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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.