Home / 12,208.08-18,305.28-3,886.62

Finding the Fourth Proportional to 12,208.08, 18,305.28 and 3,886.62

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Solution

The fourth proportional to 12,208.08, 18,305.28 and 3,886.62 is: 5,827.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,208.08 : 18,305.28 = 3,886.62 : x
  2. Step 2: Convert to fraction form
    12,208.08/18,305.28 = 3,886.62/x
  3. Step 3: Cross multiply
    12,208.08x = 18,305.28 × 3,886.62
  4. Step 4: Simplify right side
    12,208.08x = 71,145,667.35
  5. Step 5: Solve for x
    x = 71,145,667.35/12,208.08
  6. Step 6: Final answer
    x = 5,827.75

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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.