Home / 19,105.78-26,362.39-11,146.02

Finding the Fourth Proportional to 19,105.78, 26,362.39 and 11,146.02

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Solution

The fourth proportional to 19,105.78, 26,362.39 and 11,146.02 is: 15,379.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,105.78 : 26,362.39 = 11,146.02 : x
  2. Step 2: Convert to fraction form
    19,105.78/26,362.39 = 11,146.02/x
  3. Step 3: Cross multiply
    19,105.78x = 26,362.39 × 11,146.02
  4. Step 4: Simplify right side
    19,105.78x = 293,835,726.19
  5. Step 5: Solve for x
    x = 293,835,726.19/19,105.78
  6. Step 6: Final answer
    x = 15,379.42

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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.