Home / 12,188.12-18,282.09-3,423.04

Finding the Fourth Proportional to 12,188.12, 18,282.09 and 3,423.04

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Solution

The fourth proportional to 12,188.12, 18,282.09 and 3,423.04 is: 5,134.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,188.12 : 18,282.09 = 3,423.04 : x
  2. Step 2: Convert to fraction form
    12,188.12/18,282.09 = 3,423.04/x
  3. Step 3: Cross multiply
    12,188.12x = 18,282.09 × 3,423.04
  4. Step 4: Simplify right side
    12,188.12x = 62,580,325.35
  5. Step 5: Solve for x
    x = 62,580,325.35/12,188.12
  6. Step 6: Final answer
    x = 5,134.53

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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.