Home / 12,772.28-19,165.82-5,376.12

Finding the Fourth Proportional to 12,772.28, 19,165.82 and 5,376.12

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Solution

The fourth proportional to 12,772.28, 19,165.82 and 5,376.12 is: 8,067.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,772.28 : 19,165.82 = 5,376.12 : x
  2. Step 2: Convert to fraction form
    12,772.28/19,165.82 = 5,376.12/x
  3. Step 3: Cross multiply
    12,772.28x = 19,165.82 × 5,376.12
  4. Step 4: Simplify right side
    12,772.28x = 103,037,748.22
  5. Step 5: Solve for x
    x = 103,037,748.22/12,772.28
  6. Step 6: Final answer
    x = 8,067.29

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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.