Home / 19,277.09-28,911.63-7,426.79

Finding the Fourth Proportional to 19,277.09, 28,911.63 and 7,426.79

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Solution

The fourth proportional to 19,277.09, 28,911.63 and 7,426.79 is: 11,138.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,277.09 : 28,911.63 = 7,426.79 : x
  2. Step 2: Convert to fraction form
    19,277.09/28,911.63 = 7,426.79/x
  3. Step 3: Cross multiply
    19,277.09x = 28,911.63 × 7,426.79
  4. Step 4: Simplify right side
    19,277.09x = 214,720,604.57
  5. Step 5: Solve for x
    x = 214,720,604.57/19,277.09
  6. Step 6: Final answer
    x = 11,138.64

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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.