Home / 8,190.08-11,306.60-5,515.37

Finding the Fourth Proportional to 8,190.08, 11,306.60 and 5,515.37

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Solution

The fourth proportional to 8,190.08, 11,306.60 and 5,515.37 is: 7,614.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,190.08 : 11,306.60 = 5,515.37 : x
  2. Step 2: Convert to fraction form
    8,190.08/11,306.60 = 5,515.37/x
  3. Step 3: Cross multiply
    8,190.08x = 11,306.60 × 5,515.37
  4. Step 4: Simplify right side
    8,190.08x = 62,360,082.44
  5. Step 5: Solve for x
    x = 62,360,082.44/8,190.08
  6. Step 6: Final answer
    x = 7,614.10

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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.