Home / 15,684.73-21,645.30-8,611.27

Finding the Fourth Proportional to 15,684.73, 21,645.30 and 8,611.27

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Solution

The fourth proportional to 15,684.73, 21,645.30 and 8,611.27 is: 11,883.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,684.73 : 21,645.30 = 8,611.27 : x
  2. Step 2: Convert to fraction form
    15,684.73/21,645.30 = 8,611.27/x
  3. Step 3: Cross multiply
    15,684.73x = 21,645.30 × 8,611.27
  4. Step 4: Simplify right side
    15,684.73x = 186,393,522.53
  5. Step 5: Solve for x
    x = 186,393,522.53/15,684.73
  6. Step 6: Final answer
    x = 11,883.76

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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.