Home / 9,268.09-12,790.88-5,289.80

Finding the Fourth Proportional to 9,268.09, 12,790.88 and 5,289.80

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Solution

The fourth proportional to 9,268.09, 12,790.88 and 5,289.80 is: 7,300.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,268.09 : 12,790.88 = 5,289.80 : x
  2. Step 2: Convert to fraction form
    9,268.09/12,790.88 = 5,289.80/x
  3. Step 3: Cross multiply
    9,268.09x = 12,790.88 × 5,289.80
  4. Step 4: Simplify right side
    9,268.09x = 67,661,197.02
  5. Step 5: Solve for x
    x = 67,661,197.02/9,268.09
  6. Step 6: Final answer
    x = 7,300.45

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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.