Home / 12,513.88-18,770.10-4,193.56

Finding the Fourth Proportional to 12,513.88, 18,770.10 and 4,193.56

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Solution

The fourth proportional to 12,513.88, 18,770.10 and 4,193.56 is: 6,290.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,513.88 : 18,770.10 = 4,193.56 : x
  2. Step 2: Convert to fraction form
    12,513.88/18,770.10 = 4,193.56/x
  3. Step 3: Cross multiply
    12,513.88x = 18,770.10 × 4,193.56
  4. Step 4: Simplify right side
    12,513.88x = 78,713,540.56
  5. Step 5: Solve for x
    x = 78,713,540.56/12,513.88
  6. Step 6: Final answer
    x = 6,290.10

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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.