Home / 9,268.75-12,791.09-5,289.79

Finding the Fourth Proportional to 9,268.75, 12,791.09 and 5,289.79

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Solution

The fourth proportional to 9,268.75, 12,791.09 and 5,289.79 is: 7,300.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,268.75 : 12,791.09 = 5,289.79 : x
  2. Step 2: Convert to fraction form
    9,268.75/12,791.09 = 5,289.79/x
  3. Step 3: Cross multiply
    9,268.75x = 12,791.09 × 5,289.79
  4. Step 4: Simplify right side
    9,268.75x = 67,662,089.57
  5. Step 5: Solve for x
    x = 67,662,089.57/9,268.75
  6. Step 6: Final answer
    x = 7,300.02

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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.