Home / 12,542.58-18,813.60-3,777.30

Finding the Fourth Proportional to 12,542.58, 18,813.60 and 3,777.30

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Solution

The fourth proportional to 12,542.58, 18,813.60 and 3,777.30 is: 5,665.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,542.58 : 18,813.60 = 3,777.30 : x
  2. Step 2: Convert to fraction form
    12,542.58/18,813.60 = 3,777.30/x
  3. Step 3: Cross multiply
    12,542.58x = 18,813.60 × 3,777.30
  4. Step 4: Simplify right side
    12,542.58x = 71,064,611.28
  5. Step 5: Solve for x
    x = 71,064,611.28/12,542.58
  6. Step 6: Final answer
    x = 5,665.87

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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.