Home / 12,110.25-18,154.98-4,207.80

Finding the Fourth Proportional to 12,110.25, 18,154.98 and 4,207.80

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Solution

The fourth proportional to 12,110.25, 18,154.98 and 4,207.80 is: 6,308.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,110.25 : 18,154.98 = 4,207.80 : x
  2. Step 2: Convert to fraction form
    12,110.25/18,154.98 = 4,207.80/x
  3. Step 3: Cross multiply
    12,110.25x = 18,154.98 × 4,207.80
  4. Step 4: Simplify right side
    12,110.25x = 76,392,524.84
  5. Step 5: Solve for x
    x = 76,392,524.84/12,110.25
  6. Step 6: Final answer
    x = 6,308.09

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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.