Home / 13,414.93-20,122.40-3,554.98

Finding the Fourth Proportional to 13,414.93, 20,122.40 and 3,554.98

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Solution

The fourth proportional to 13,414.93, 20,122.40 and 3,554.98 is: 5,332.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,414.93 : 20,122.40 = 3,554.98 : x
  2. Step 2: Convert to fraction form
    13,414.93/20,122.40 = 3,554.98/x
  3. Step 3: Cross multiply
    13,414.93x = 20,122.40 × 3,554.98
  4. Step 4: Simplify right side
    13,414.93x = 71,534,729.55
  5. Step 5: Solve for x
    x = 71,534,729.55/13,414.93
  6. Step 6: Final answer
    x = 5,332.47

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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.