Home / 9,137.08-12,611.46-6,112.36

Finding the Fourth Proportional to 9,137.08, 12,611.46 and 6,112.36

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Solution

The fourth proportional to 9,137.08, 12,611.46 and 6,112.36 is: 8,436.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,137.08 : 12,611.46 = 6,112.36 : x
  2. Step 2: Convert to fraction form
    9,137.08/12,611.46 = 6,112.36/x
  3. Step 3: Cross multiply
    9,137.08x = 12,611.46 × 6,112.36
  4. Step 4: Simplify right side
    9,137.08x = 77,085,783.65
  5. Step 5: Solve for x
    x = 77,085,783.65/9,137.08
  6. Step 6: Final answer
    x = 8,436.59

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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.