Home / 12,553.31-18,830.85-3,668.73

Finding the Fourth Proportional to 12,553.31, 18,830.85 and 3,668.73

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Solution

The fourth proportional to 12,553.31, 18,830.85 and 3,668.73 is: 5,503.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,553.31 : 18,830.85 = 3,668.73 : x
  2. Step 2: Convert to fraction form
    12,553.31/18,830.85 = 3,668.73/x
  3. Step 3: Cross multiply
    12,553.31x = 18,830.85 × 3,668.73
  4. Step 4: Simplify right side
    12,553.31x = 69,085,219.95
  5. Step 5: Solve for x
    x = 69,085,219.95/12,553.31
  6. Step 6: Final answer
    x = 5,503.35

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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.