Home / 15,766.74-21,758.22-8,694.36

Finding the Fourth Proportional to 15,766.74, 21,758.22 and 8,694.36

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Solution

The fourth proportional to 15,766.74, 21,758.22 and 8,694.36 is: 11,998.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,766.74 : 21,758.22 = 8,694.36 : x
  2. Step 2: Convert to fraction form
    15,766.74/21,758.22 = 8,694.36/x
  3. Step 3: Cross multiply
    15,766.74x = 21,758.22 × 8,694.36
  4. Step 4: Simplify right side
    15,766.74x = 189,173,797.64
  5. Step 5: Solve for x
    x = 189,173,797.64/15,766.74
  6. Step 6: Final answer
    x = 11,998.28

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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.