Home / 18,947.89-26,148.36-10,992.52

Finding the Fourth Proportional to 18,947.89, 26,148.36 and 10,992.52

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Solution

The fourth proportional to 18,947.89, 26,148.36 and 10,992.52 is: 15,169.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,947.89 : 26,148.36 = 10,992.52 : x
  2. Step 2: Convert to fraction form
    18,947.89/26,148.36 = 10,992.52/x
  3. Step 3: Cross multiply
    18,947.89x = 26,148.36 × 10,992.52
  4. Step 4: Simplify right side
    18,947.89x = 287,436,370.27
  5. Step 5: Solve for x
    x = 287,436,370.27/18,947.89
  6. Step 6: Final answer
    x = 15,169.84

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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.