Home / 15,611.06-21,542.83-8,537.33

Finding the Fourth Proportional to 15,611.06, 21,542.83 and 8,537.33

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Solution

The fourth proportional to 15,611.06, 21,542.83 and 8,537.33 is: 11,781.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,611.06 : 21,542.83 = 8,537.33 : x
  2. Step 2: Convert to fraction form
    15,611.06/21,542.83 = 8,537.33/x
  3. Step 3: Cross multiply
    15,611.06x = 21,542.83 × 8,537.33
  4. Step 4: Simplify right side
    15,611.06x = 183,918,281.36
  5. Step 5: Solve for x
    x = 183,918,281.36/15,611.06
  6. Step 6: Final answer
    x = 11,781.28

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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.