Home / 13,121.82-19,682.73-4,354.74

Finding the Fourth Proportional to 13,121.82, 19,682.73 and 4,354.74

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Solution

The fourth proportional to 13,121.82, 19,682.73 and 4,354.74 is: 6,532.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,121.82 : 19,682.73 = 4,354.74 : x
  2. Step 2: Convert to fraction form
    13,121.82/19,682.73 = 4,354.74/x
  3. Step 3: Cross multiply
    13,121.82x = 19,682.73 × 4,354.74
  4. Step 4: Simplify right side
    13,121.82x = 85,713,171.64
  5. Step 5: Solve for x
    x = 85,713,171.64/13,121.82
  6. Step 6: Final answer
    x = 6,532.11

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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.