Home / 19,108.31-26,369.25-11,151.78

Finding the Fourth Proportional to 19,108.31, 26,369.25 and 11,151.78

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Solution

The fourth proportional to 19,108.31, 26,369.25 and 11,151.78 is: 15,389.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,108.31 : 26,369.25 = 11,151.78 : x
  2. Step 2: Convert to fraction form
    19,108.31/26,369.25 = 11,151.78/x
  3. Step 3: Cross multiply
    19,108.31x = 26,369.25 × 11,151.78
  4. Step 4: Simplify right side
    19,108.31x = 294,063,934.06
  5. Step 5: Solve for x
    x = 294,063,934.06/19,108.31
  6. Step 6: Final answer
    x = 15,389.33

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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.