Home / 15,757.30-21,745.33-8,683.62

Finding the Fourth Proportional to 15,757.30, 21,745.33 and 8,683.62

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Solution

The fourth proportional to 15,757.30, 21,745.33 and 8,683.62 is: 11,983.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,757.30 : 21,745.33 = 8,683.62 : x
  2. Step 2: Convert to fraction form
    15,757.30/21,745.33 = 8,683.62/x
  3. Step 3: Cross multiply
    15,757.30x = 21,745.33 × 8,683.62
  4. Step 4: Simplify right side
    15,757.30x = 188,828,182.49
  5. Step 5: Solve for x
    x = 188,828,182.49/15,757.30
  6. Step 6: Final answer
    x = 11,983.54

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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.