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Finding the Fourth Proportional to 8,268.68, 11,411.08 and 7,895.07

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Solution

The fourth proportional to 8,268.68, 11,411.08 and 7,895.07 is: 10,895.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,268.68 : 11,411.08 = 7,895.07 : x
  2. Step 2: Convert to fraction form
    8,268.68/11,411.08 = 7,895.07/x
  3. Step 3: Cross multiply
    8,268.68x = 11,411.08 × 7,895.07
  4. Step 4: Simplify right side
    8,268.68x = 90,091,255.64
  5. Step 5: Solve for x
    x = 90,091,255.64/8,268.68
  6. Step 6: Final answer
    x = 10,895.48

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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.