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Finding the Fourth Proportional to 12,562.78, 18,841.74 and 3,795.64

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Solution

The fourth proportional to 12,562.78, 18,841.74 and 3,795.64 is: 5,692.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,562.78 : 18,841.74 = 3,795.64 : x
  2. Step 2: Convert to fraction form
    12,562.78/18,841.74 = 3,795.64/x
  3. Step 3: Cross multiply
    12,562.78x = 18,841.74 × 3,795.64
  4. Step 4: Simplify right side
    12,562.78x = 71,516,462.01
  5. Step 5: Solve for x
    x = 71,516,462.01/12,562.78
  6. Step 6: Final answer
    x = 5,692.73

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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.