Home / 12,412.83-18,618.94-6,863.32

Finding the Fourth Proportional to 12,412.83, 18,618.94 and 6,863.32

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Solution

The fourth proportional to 12,412.83, 18,618.94 and 6,863.32 is: 10,294.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,412.83 : 18,618.94 = 6,863.32 : x
  2. Step 2: Convert to fraction form
    12,412.83/18,618.94 = 6,863.32/x
  3. Step 3: Cross multiply
    12,412.83x = 18,618.94 × 6,863.32
  4. Step 4: Simplify right side
    12,412.83x = 127,787,743.28
  5. Step 5: Solve for x
    x = 127,787,743.28/12,412.83
  6. Step 6: Final answer
    x = 10,294.81

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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.