Home / 19,129.89-26,388.24-11,947.32

Finding the Fourth Proportional to 19,129.89, 26,388.24 and 11,947.32

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Solution

The fourth proportional to 19,129.89, 26,388.24 and 11,947.32 is: 16,480.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,129.89 : 26,388.24 = 11,947.32 : x
  2. Step 2: Convert to fraction form
    19,129.89/26,388.24 = 11,947.32/x
  3. Step 3: Cross multiply
    19,129.89x = 26,388.24 × 11,947.32
  4. Step 4: Simplify right side
    19,129.89x = 315,268,747.52
  5. Step 5: Solve for x
    x = 315,268,747.52/19,129.89
  6. Step 6: Final answer
    x = 16,480.43

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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.