Home / 8,757.45-12,082.19-5,615.37

Finding the Fourth Proportional to 8,757.45, 12,082.19 and 5,615.37

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Solution

The fourth proportional to 8,757.45, 12,082.19 and 5,615.37 is: 7,747.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,757.45 : 12,082.19 = 5,615.37 : x
  2. Step 2: Convert to fraction form
    8,757.45/12,082.19 = 5,615.37/x
  3. Step 3: Cross multiply
    8,757.45x = 12,082.19 × 5,615.37
  4. Step 4: Simplify right side
    8,757.45x = 67,845,939.18
  5. Step 5: Solve for x
    x = 67,845,939.18/8,757.45
  6. Step 6: Final answer
    x = 7,747.23

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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.