Home / 19,551.72-26,979.78-11,054.58

Finding the Fourth Proportional to 19,551.72, 26,979.78 and 11,054.58

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Solution

The fourth proportional to 19,551.72, 26,979.78 and 11,054.58 is: 15,254.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,551.72 : 26,979.78 = 11,054.58 : x
  2. Step 2: Convert to fraction form
    19,551.72/26,979.78 = 11,054.58/x
  3. Step 3: Cross multiply
    19,551.72x = 26,979.78 × 11,054.58
  4. Step 4: Simplify right side
    19,551.72x = 298,250,136.39
  5. Step 5: Solve for x
    x = 298,250,136.39/19,551.72
  6. Step 6: Final answer
    x = 15,254.42

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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.