Home / 8,698.15-11,990.35-6,806.44

Finding the Fourth Proportional to 8,698.15, 11,990.35 and 6,806.44

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Solution

The fourth proportional to 8,698.15, 11,990.35 and 6,806.44 is: 9,382.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,698.15 : 11,990.35 = 6,806.44 : x
  2. Step 2: Convert to fraction form
    8,698.15/11,990.35 = 6,806.44/x
  3. Step 3: Cross multiply
    8,698.15x = 11,990.35 × 6,806.44
  4. Step 4: Simplify right side
    8,698.15x = 81,611,563.82
  5. Step 5: Solve for x
    x = 81,611,563.82/8,698.15
  6. Step 6: Final answer
    x = 9,382.64

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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.