Home / 8,389.27-11,577.75-5,551.75

Finding the Fourth Proportional to 8,389.27, 11,577.75 and 5,551.75

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Solution

The fourth proportional to 8,389.27, 11,577.75 and 5,551.75 is: 7,661.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,389.27 : 11,577.75 = 5,551.75 : x
  2. Step 2: Convert to fraction form
    8,389.27/11,577.75 = 5,551.75/x
  3. Step 3: Cross multiply
    8,389.27x = 11,577.75 × 5,551.75
  4. Step 4: Simplify right side
    8,389.27x = 64,276,773.56
  5. Step 5: Solve for x
    x = 64,276,773.56/8,389.27
  6. Step 6: Final answer
    x = 7,661.78

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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.