Home / 12,298.20-18,447.30-8,604.60

Finding the Fourth Proportional to 12,298.20, 18,447.30 and 8,604.60

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Solution

The fourth proportional to 12,298.20, 18,447.30 and 8,604.60 is: 12,906.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,298.20 : 18,447.30 = 8,604.60 : x
  2. Step 2: Convert to fraction form
    12,298.20/18,447.30 = 8,604.60/x
  3. Step 3: Cross multiply
    12,298.20x = 18,447.30 × 8,604.60
  4. Step 4: Simplify right side
    12,298.20x = 158,731,637.58
  5. Step 5: Solve for x
    x = 158,731,637.58/12,298.20
  6. Step 6: Final answer
    x = 12,906.90

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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.