Home / 9,268.69-12,791.70-5,290.40

Finding the Fourth Proportional to 9,268.69, 12,791.70 and 5,290.40

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Solution

The fourth proportional to 9,268.69, 12,791.70 and 5,290.40 is: 7,301.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,268.69 : 12,791.70 = 5,290.40 : x
  2. Step 2: Convert to fraction form
    9,268.69/12,791.70 = 5,290.40/x
  3. Step 3: Cross multiply
    9,268.69x = 12,791.70 × 5,290.40
  4. Step 4: Simplify right side
    9,268.69x = 67,673,209.68
  5. Step 5: Solve for x
    x = 67,673,209.68/9,268.69
  6. Step 6: Final answer
    x = 7,301.27

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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.