Home / 12,614.61-18,912.67-4,292.39

Finding the Fourth Proportional to 12,614.61, 18,912.67 and 4,292.39

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Solution

The fourth proportional to 12,614.61, 18,912.67 and 4,292.39 is: 6,435.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,614.61 : 18,912.67 = 4,292.39 : x
  2. Step 2: Convert to fraction form
    12,614.61/18,912.67 = 4,292.39/x
  3. Step 3: Cross multiply
    12,614.61x = 18,912.67 × 4,292.39
  4. Step 4: Simplify right side
    12,614.61x = 81,180,616.28
  5. Step 5: Solve for x
    x = 81,180,616.28/12,614.61
  6. Step 6: Final answer
    x = 6,435.44

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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.