Home / 17,629.74-26,411.94-12,621.78

Finding the Fourth Proportional to 17,629.74, 26,411.94 and 12,621.78

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Solution

The fourth proportional to 17,629.74, 26,411.94 and 12,621.78 is: 18,909.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,629.74 : 26,411.94 = 12,621.78 : x
  2. Step 2: Convert to fraction form
    17,629.74/26,411.94 = 12,621.78/x
  3. Step 3: Cross multiply
    17,629.74x = 26,411.94 × 12,621.78
  4. Step 4: Simplify right side
    17,629.74x = 333,365,696.05
  5. Step 5: Solve for x
    x = 333,365,696.05/17,629.74
  6. Step 6: Final answer
    x = 18,909.28

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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.