Home / 12,961.21-19,444.90-4,196.12

Finding the Fourth Proportional to 12,961.21, 19,444.90 and 4,196.12

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Solution

The fourth proportional to 12,961.21, 19,444.90 and 4,196.12 is: 6,295.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,961.21 : 19,444.90 = 4,196.12 : x
  2. Step 2: Convert to fraction form
    12,961.21/19,444.90 = 4,196.12/x
  3. Step 3: Cross multiply
    12,961.21x = 19,444.90 × 4,196.12
  4. Step 4: Simplify right side
    12,961.21x = 81,593,133.79
  5. Step 5: Solve for x
    x = 81,593,133.79/12,961.21
  6. Step 6: Final answer
    x = 6,295.18

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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.