Home / 12,513.26-18,770.61-4,192.94

Finding the Fourth Proportional to 12,513.26, 18,770.61 and 4,192.94

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Solution

The fourth proportional to 12,513.26, 18,770.61 and 4,192.94 is: 6,289.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,513.26 : 18,770.61 = 4,192.94 : x
  2. Step 2: Convert to fraction form
    12,513.26/18,770.61 = 4,192.94/x
  3. Step 3: Cross multiply
    12,513.26x = 18,770.61 × 4,192.94
  4. Step 4: Simplify right side
    12,513.26x = 78,704,041.49
  5. Step 5: Solve for x
    x = 78,704,041.49/12,513.26
  6. Step 6: Final answer
    x = 6,289.65

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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.