Home / 8,199.09-11,313.74-5,173.07

Finding the Fourth Proportional to 8,199.09, 11,313.74 and 5,173.07

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Solution

The fourth proportional to 8,199.09, 11,313.74 and 5,173.07 is: 7,138.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,199.09 : 11,313.74 = 5,173.07 : x
  2. Step 2: Convert to fraction form
    8,199.09/11,313.74 = 5,173.07/x
  3. Step 3: Cross multiply
    8,199.09x = 11,313.74 × 5,173.07
  4. Step 4: Simplify right side
    8,199.09x = 58,526,768.98
  5. Step 5: Solve for x
    x = 58,526,768.98/8,199.09
  6. Step 6: Final answer
    x = 7,138.20

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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.