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Finding the Fourth Proportional to 6,387.99, 9,571.02 and 5,075.79

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Solution

The fourth proportional to 6,387.99, 9,571.02 and 5,075.79 is: 7,604.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,387.99 : 9,571.02 = 5,075.79 : x
  2. Step 2: Convert to fraction form
    6,387.99/9,571.02 = 5,075.79/x
  3. Step 3: Cross multiply
    6,387.99x = 9,571.02 × 5,075.79
  4. Step 4: Simplify right side
    6,387.99x = 48,580,487.61
  5. Step 5: Solve for x
    x = 48,580,487.61/6,387.99
  6. Step 6: Final answer
    x = 7,604.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.