Home / 12,418.16-18,626.68-3,653.36

Finding the Fourth Proportional to 12,418.16, 18,626.68 and 3,653.36

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Solution

The fourth proportional to 12,418.16, 18,626.68 and 3,653.36 is: 5,479.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,418.16 : 18,626.68 = 3,653.36 : x
  2. Step 2: Convert to fraction form
    12,418.16/18,626.68 = 3,653.36/x
  3. Step 3: Cross multiply
    12,418.16x = 18,626.68 × 3,653.36
  4. Step 4: Simplify right side
    12,418.16x = 68,049,967.64
  5. Step 5: Solve for x
    x = 68,049,967.64/12,418.16
  6. Step 6: Final answer
    x = 5,479.88

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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.