Home / 18,749.87-28,110.66-11,352.54

Finding the Fourth Proportional to 18,749.87, 28,110.66 and 11,352.54

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Solution

The fourth proportional to 18,749.87, 28,110.66 and 11,352.54 is: 17,020.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,749.87 : 28,110.66 = 11,352.54 : x
  2. Step 2: Convert to fraction form
    18,749.87/28,110.66 = 11,352.54/x
  3. Step 3: Cross multiply
    18,749.87x = 28,110.66 × 11,352.54
  4. Step 4: Simplify right side
    18,749.87x = 319,127,392.08
  5. Step 5: Solve for x
    x = 319,127,392.08/18,749.87
  6. Step 6: Final answer
    x = 17,020.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.