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Finding the Fourth Proportional to 12,694.89, 19,009.21 and 10,216.17

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Solution

The fourth proportional to 12,694.89, 19,009.21 and 10,216.17 is: 15,297.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,694.89 : 19,009.21 = 10,216.17 : x
  2. Step 2: Convert to fraction form
    12,694.89/19,009.21 = 10,216.17/x
  3. Step 3: Cross multiply
    12,694.89x = 19,009.21 × 10,216.17
  4. Step 4: Simplify right side
    12,694.89x = 194,201,320.93
  5. Step 5: Solve for x
    x = 194,201,320.93/12,694.89
  6. Step 6: Final answer
    x = 15,297.60

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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.