Home / 9,268.79-12,791.84-5,290.50

Finding the Fourth Proportional to 9,268.79, 12,791.84 and 5,290.50

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Solution

The fourth proportional to 9,268.79, 12,791.84 and 5,290.50 is: 7,301.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,268.79 : 12,791.84 = 5,290.50 : x
  2. Step 2: Convert to fraction form
    9,268.79/12,791.84 = 5,290.50/x
  3. Step 3: Cross multiply
    9,268.79x = 12,791.84 × 5,290.50
  4. Step 4: Simplify right side
    9,268.79x = 67,675,203.07
  5. Step 5: Solve for x
    x = 67,675,203.07/9,268.79
  6. Step 6: Final answer
    x = 7,301.41

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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.