Home / 9,268.45-12,791.38-5,290.16

Finding the Fourth Proportional to 9,268.45, 12,791.38 and 5,290.16

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Solution

The fourth proportional to 9,268.45, 12,791.38 and 5,290.16 is: 7,300.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,268.45 : 12,791.38 = 5,290.16 : x
  2. Step 2: Convert to fraction form
    9,268.45/12,791.38 = 5,290.16/x
  3. Step 3: Cross multiply
    9,268.45x = 12,791.38 × 5,290.16
  4. Step 4: Simplify right side
    9,268.45x = 67,668,465.57
  5. Step 5: Solve for x
    x = 67,668,465.57/9,268.45
  6. Step 6: Final answer
    x = 7,300.95

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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.