Home / 12,284.10-18,421.92-3,961.98

Finding the Fourth Proportional to 12,284.10, 18,421.92 and 3,961.98

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Solution

The fourth proportional to 12,284.10, 18,421.92 and 3,961.98 is: 5,941.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,284.10 : 18,421.92 = 3,961.98 : x
  2. Step 2: Convert to fraction form
    12,284.10/18,421.92 = 3,961.98/x
  3. Step 3: Cross multiply
    12,284.10x = 18,421.92 × 3,961.98
  4. Step 4: Simplify right side
    12,284.10x = 72,987,278.60
  5. Step 5: Solve for x
    x = 72,987,278.60/12,284.10
  6. Step 6: Final answer
    x = 5,941.61

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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.