Home / 19,125.78-26,382.88-12,039.90

Finding the Fourth Proportional to 19,125.78, 26,382.88 and 12,039.90

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Solution

The fourth proportional to 19,125.78, 26,382.88 and 12,039.90 is: 16,608.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,125.78 : 26,382.88 = 12,039.90 : x
  2. Step 2: Convert to fraction form
    19,125.78/26,382.88 = 12,039.90/x
  3. Step 3: Cross multiply
    19,125.78x = 26,382.88 × 12,039.90
  4. Step 4: Simplify right side
    19,125.78x = 317,647,236.91
  5. Step 5: Solve for x
    x = 317,647,236.91/19,125.78
  6. Step 6: Final answer
    x = 16,608.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.