Home / 12,197.60-18,296.40-8,043.20

Finding the Fourth Proportional to 12,197.60, 18,296.40 and 8,043.20

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Solution

The fourth proportional to 12,197.60, 18,296.40 and 8,043.20 is: 12,064.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,197.60 : 18,296.40 = 8,043.20 : x
  2. Step 2: Convert to fraction form
    12,197.60/18,296.40 = 8,043.20/x
  3. Step 3: Cross multiply
    12,197.60x = 18,296.40 × 8,043.20
  4. Step 4: Simplify right side
    12,197.60x = 147,161,604.48
  5. Step 5: Solve for x
    x = 147,161,604.48/12,197.60
  6. Step 6: Final answer
    x = 12,064.80

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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.