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Finding the Fourth Proportional to 7,751.57, 11,571.12 and 7,173.36

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Solution

The fourth proportional to 7,751.57, 11,571.12 and 7,173.36 is: 10,708.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,751.57 : 11,571.12 = 7,173.36 : x
  2. Step 2: Convert to fraction form
    7,751.57/11,571.12 = 7,173.36/x
  3. Step 3: Cross multiply
    7,751.57x = 11,571.12 × 7,173.36
  4. Step 4: Simplify right side
    7,751.57x = 83,003,809.36
  5. Step 5: Solve for x
    x = 83,003,809.36/7,751.57
  6. Step 6: Final answer
    x = 10,708.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.