Home / 9,268.44-12,787.90-5,288.12

Finding the Fourth Proportional to 9,268.44, 12,787.90 and 5,288.12

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Solution

The fourth proportional to 9,268.44, 12,787.90 and 5,288.12 is: 7,296.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,268.44 : 12,787.90 = 5,288.12 : x
  2. Step 2: Convert to fraction form
    9,268.44/12,787.90 = 5,288.12/x
  3. Step 3: Cross multiply
    9,268.44x = 12,787.90 × 5,288.12
  4. Step 4: Simplify right side
    9,268.44x = 67,623,949.75
  5. Step 5: Solve for x
    x = 67,623,949.75/9,268.44
  6. Step 6: Final answer
    x = 7,296.15

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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.