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Finding the Fourth Proportional to 17,850.78, 26,817.21 and 12,597.89

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Solution

The fourth proportional to 17,850.78, 26,817.21 and 12,597.89 is: 18,925.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,850.78 : 26,817.21 = 12,597.89 : x
  2. Step 2: Convert to fraction form
    17,850.78/26,817.21 = 12,597.89/x
  3. Step 3: Cross multiply
    17,850.78x = 26,817.21 × 12,597.89
  4. Step 4: Simplify right side
    17,850.78x = 337,840,127.60
  5. Step 5: Solve for x
    x = 337,840,127.60/17,850.78
  6. Step 6: Final answer
    x = 18,925.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.