Home / 15,629.67-21,563.12-9,963.11

Finding the Fourth Proportional to 15,629.67, 21,563.12 and 9,963.11

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Solution

The fourth proportional to 15,629.67, 21,563.12 and 9,963.11 is: 13,745.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,629.67 : 21,563.12 = 9,963.11 : x
  2. Step 2: Convert to fraction form
    15,629.67/21,563.12 = 9,963.11/x
  3. Step 3: Cross multiply
    15,629.67x = 21,563.12 × 9,963.11
  4. Step 4: Simplify right side
    15,629.67x = 214,835,815.32
  5. Step 5: Solve for x
    x = 214,835,815.32/15,629.67
  6. Step 6: Final answer
    x = 13,745.38

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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.