Home / 8,786.96-12,122.52-6,268.40

Finding the Fourth Proportional to 8,786.96, 12,122.52 and 6,268.40

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Solution

The fourth proportional to 8,786.96, 12,122.52 and 6,268.40 is: 8,647.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,786.96 : 12,122.52 = 6,268.40 : x
  2. Step 2: Convert to fraction form
    8,786.96/12,122.52 = 6,268.40/x
  3. Step 3: Cross multiply
    8,786.96x = 12,122.52 × 6,268.40
  4. Step 4: Simplify right side
    8,786.96x = 75,988,804.37
  5. Step 5: Solve for x
    x = 75,988,804.37/8,786.96
  6. Step 6: Final answer
    x = 8,647.91

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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.