Home / 15,789.03-21,791.23-9,822.60

Finding the Fourth Proportional to 15,789.03, 21,791.23 and 9,822.60

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Solution

The fourth proportional to 15,789.03, 21,791.23 and 9,822.60 is: 13,556.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,789.03 : 21,791.23 = 9,822.60 : x
  2. Step 2: Convert to fraction form
    15,789.03/21,791.23 = 9,822.60/x
  3. Step 3: Cross multiply
    15,789.03x = 21,791.23 × 9,822.60
  4. Step 4: Simplify right side
    15,789.03x = 214,046,511.24
  5. Step 5: Solve for x
    x = 214,046,511.24/15,789.03
  6. Step 6: Final answer
    x = 13,556.66

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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.