Home / 19,290.44-28,940.10-8,197.48

Finding the Fourth Proportional to 19,290.44, 28,940.10 and 8,197.48

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Solution

The fourth proportional to 19,290.44, 28,940.10 and 8,197.48 is: 12,298.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,290.44 : 28,940.10 = 8,197.48 : x
  2. Step 2: Convert to fraction form
    19,290.44/28,940.10 = 8,197.48/x
  3. Step 3: Cross multiply
    19,290.44x = 28,940.10 × 8,197.48
  4. Step 4: Simplify right side
    19,290.44x = 237,235,890.95
  5. Step 5: Solve for x
    x = 237,235,890.95/19,290.44
  6. Step 6: Final answer
    x = 12,298.11

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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.