Home / 8,145.09-11,234.19-5,274.54

Finding the Fourth Proportional to 8,145.09, 11,234.19 and 5,274.54

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Solution

The fourth proportional to 8,145.09, 11,234.19 and 5,274.54 is: 7,274.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,145.09 : 11,234.19 = 5,274.54 : x
  2. Step 2: Convert to fraction form
    8,145.09/11,234.19 = 5,274.54/x
  3. Step 3: Cross multiply
    8,145.09x = 11,234.19 × 5,274.54
  4. Step 4: Simplify right side
    8,145.09x = 59,255,184.52
  5. Step 5: Solve for x
    x = 59,255,184.52/8,145.09
  6. Step 6: Final answer
    x = 7,274.96

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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.