Home / 15,899.25-21,942.99-9,611.63

Finding the Fourth Proportional to 15,899.25, 21,942.99 and 9,611.63

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Solution

The fourth proportional to 15,899.25, 21,942.99 and 9,611.63 is: 13,265.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,899.25 : 21,942.99 = 9,611.63 : x
  2. Step 2: Convert to fraction form
    15,899.25/21,942.99 = 9,611.63/x
  3. Step 3: Cross multiply
    15,899.25x = 21,942.99 × 9,611.63
  4. Step 4: Simplify right side
    15,899.25x = 210,907,791.26
  5. Step 5: Solve for x
    x = 210,907,791.26/15,899.25
  6. Step 6: Final answer
    x = 13,265.27

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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.