Home / 12,418.94-18,636.78-4,627.76

Finding the Fourth Proportional to 12,418.94, 18,636.78 and 4,627.76

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Solution

The fourth proportional to 12,418.94, 18,636.78 and 4,627.76 is: 6,944.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,418.94 : 18,636.78 = 4,627.76 : x
  2. Step 2: Convert to fraction form
    12,418.94/18,636.78 = 4,627.76/x
  3. Step 3: Cross multiply
    12,418.94x = 18,636.78 × 4,627.76
  4. Step 4: Simplify right side
    12,418.94x = 86,246,545.01
  5. Step 5: Solve for x
    x = 86,246,545.01/12,418.94
  6. Step 6: Final answer
    x = 6,944.76

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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.