Home / 8,961.24-12,372.03-5,775.66

Finding the Fourth Proportional to 8,961.24, 12,372.03 and 5,775.66

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Solution

The fourth proportional to 8,961.24, 12,372.03 and 5,775.66 is: 7,973.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,961.24 : 12,372.03 = 5,775.66 : x
  2. Step 2: Convert to fraction form
    8,961.24/12,372.03 = 5,775.66/x
  3. Step 3: Cross multiply
    8,961.24x = 12,372.03 × 5,775.66
  4. Step 4: Simplify right side
    8,961.24x = 71,456,638.79
  5. Step 5: Solve for x
    x = 71,456,638.79/8,961.24
  6. Step 6: Final answer
    x = 7,973.97

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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.