Home / 12,948.80-19,423.20-8,049.60

Finding the Fourth Proportional to 12,948.80, 19,423.20 and 8,049.60

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Solution

The fourth proportional to 12,948.80, 19,423.20 and 8,049.60 is: 12,074.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948.80 : 19,423.20 = 8,049.60 : x
  2. Step 2: Convert to fraction form
    12,948.80/19,423.20 = 8,049.60/x
  3. Step 3: Cross multiply
    12,948.80x = 19,423.20 × 8,049.60
  4. Step 4: Simplify right side
    12,948.80x = 156,348,990.72
  5. Step 5: Solve for x
    x = 156,348,990.72/12,948.80
  6. Step 6: Final answer
    x = 12,074.40

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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.