Home / 12,625.55-18,938.30-3,860.46

Finding the Fourth Proportional to 12,625.55, 18,938.30 and 3,860.46

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Solution

The fourth proportional to 12,625.55, 18,938.30 and 3,860.46 is: 5,790.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,625.55 : 18,938.30 = 3,860.46 : x
  2. Step 2: Convert to fraction form
    12,625.55/18,938.30 = 3,860.46/x
  3. Step 3: Cross multiply
    12,625.55x = 18,938.30 × 3,860.46
  4. Step 4: Simplify right side
    12,625.55x = 73,110,549.62
  5. Step 5: Solve for x
    x = 73,110,549.62/12,625.55
  6. Step 6: Final answer
    x = 5,790.68

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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.