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Finding the Fourth Proportional to 12,797.10, 19,215.45 and 6,965.10

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Solution

The fourth proportional to 12,797.10, 19,215.45 and 6,965.10 is: 10,458.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,797.10 : 19,215.45 = 6,965.10 : x
  2. Step 2: Convert to fraction form
    12,797.10/19,215.45 = 6,965.10/x
  3. Step 3: Cross multiply
    12,797.10x = 19,215.45 × 6,965.10
  4. Step 4: Simplify right side
    12,797.10x = 133,837,530.80
  5. Step 5: Solve for x
    x = 133,837,530.80/12,797.10
  6. Step 6: Final answer
    x = 10,458.43

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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.