Home / 12,466.60-18,678.30-8,081.80

Finding the Fourth Proportional to 12,466.60, 18,678.30 and 8,081.80

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Solution

The fourth proportional to 12,466.60, 18,678.30 and 8,081.80 is: 12,108.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,466.60 : 18,678.30 = 8,081.80 : x
  2. Step 2: Convert to fraction form
    12,466.60/18,678.30 = 8,081.80/x
  3. Step 3: Cross multiply
    12,466.60x = 18,678.30 × 8,081.80
  4. Step 4: Simplify right side
    12,466.60x = 150,954,284.94
  5. Step 5: Solve for x
    x = 150,954,284.94/12,466.60
  6. Step 6: Final answer
    x = 12,108.70

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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.