Home / 19,162.78-26,435.57-12,792.33

Finding the Fourth Proportional to 19,162.78, 26,435.57 and 12,792.33

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Solution

The fourth proportional to 19,162.78, 26,435.57 and 12,792.33 is: 17,647.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,162.78 : 26,435.57 = 12,792.33 : x
  2. Step 2: Convert to fraction form
    19,162.78/26,435.57 = 12,792.33/x
  3. Step 3: Cross multiply
    19,162.78x = 26,435.57 × 12,792.33
  4. Step 4: Simplify right side
    19,162.78x = 338,172,471.22
  5. Step 5: Solve for x
    x = 338,172,471.22/19,162.78
  6. Step 6: Final answer
    x = 17,647.36

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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.