Home / 8,529.35-11,771.34-5,174.54

Finding the Fourth Proportional to 8,529.35, 11,771.34 and 5,174.54

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Solution

The fourth proportional to 8,529.35, 11,771.34 and 5,174.54 is: 7,141.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,529.35 : 11,771.34 = 5,174.54 : x
  2. Step 2: Convert to fraction form
    8,529.35/11,771.34 = 5,174.54/x
  3. Step 3: Cross multiply
    8,529.35x = 11,771.34 × 5,174.54
  4. Step 4: Simplify right side
    8,529.35x = 60,911,210.83
  5. Step 5: Solve for x
    x = 60,911,210.83/8,529.35
  6. Step 6: Final answer
    x = 7,141.37

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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.