Home / 13,272.73-19,908.64-3,912.90

Finding the Fourth Proportional to 13,272.73, 19,908.64 and 3,912.90

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Solution

The fourth proportional to 13,272.73, 19,908.64 and 3,912.90 is: 5,869.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,272.73 : 19,908.64 = 3,912.90 : x
  2. Step 2: Convert to fraction form
    13,272.73/19,908.64 = 3,912.90/x
  3. Step 3: Cross multiply
    13,272.73x = 19,908.64 × 3,912.90
  4. Step 4: Simplify right side
    13,272.73x = 77,900,417.91
  5. Step 5: Solve for x
    x = 77,900,417.91/13,272.73
  6. Step 6: Final answer
    x = 5,869.21

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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.