Home / 8,145.41-11,238.09-4,787.15

Finding the Fourth Proportional to 8,145.41, 11,238.09 and 4,787.15

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Solution

The fourth proportional to 8,145.41, 11,238.09 and 4,787.15 is: 6,604.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,145.41 : 11,238.09 = 4,787.15 : x
  2. Step 2: Convert to fraction form
    8,145.41/11,238.09 = 4,787.15/x
  3. Step 3: Cross multiply
    8,145.41x = 11,238.09 × 4,787.15
  4. Step 4: Simplify right side
    8,145.41x = 53,798,422.54
  5. Step 5: Solve for x
    x = 53,798,422.54/8,145.41
  6. Step 6: Final answer
    x = 6,604.75

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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.