Home / 12,409.45-18,616.94-4,618.27

Finding the Fourth Proportional to 12,409.45, 18,616.94 and 4,618.27

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Solution

The fourth proportional to 12,409.45, 18,616.94 and 4,618.27 is: 6,928.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,409.45 : 18,616.94 = 4,618.27 : x
  2. Step 2: Convert to fraction form
    12,409.45/18,616.94 = 4,618.27/x
  3. Step 3: Cross multiply
    12,409.45x = 18,616.94 × 4,618.27
  4. Step 4: Simplify right side
    12,409.45x = 85,977,968.27
  5. Step 5: Solve for x
    x = 85,977,968.27/12,409.45
  6. Step 6: Final answer
    x = 6,928.43

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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.