Home / 15,757.57-21,745.01-8,587.33

Finding the Fourth Proportional to 15,757.57, 21,745.01 and 8,587.33

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Solution

The fourth proportional to 15,757.57, 21,745.01 and 8,587.33 is: 11,850.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,757.57 : 21,745.01 = 8,587.33 : x
  2. Step 2: Convert to fraction form
    15,757.57/21,745.01 = 8,587.33/x
  3. Step 3: Cross multiply
    15,757.57x = 21,745.01 × 8,587.33
  4. Step 4: Simplify right side
    15,757.57x = 186,731,576.72
  5. Step 5: Solve for x
    x = 186,731,576.72/15,757.57
  6. Step 6: Final answer
    x = 11,850.28

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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.