Home / 8,075.17-11,143.08-4,489.85

Finding the Fourth Proportional to 8,075.17, 11,143.08 and 4,489.85

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Solution

The fourth proportional to 8,075.17, 11,143.08 and 4,489.85 is: 6,195.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,075.17 : 11,143.08 = 4,489.85 : x
  2. Step 2: Convert to fraction form
    8,075.17/11,143.08 = 4,489.85/x
  3. Step 3: Cross multiply
    8,075.17x = 11,143.08 × 4,489.85
  4. Step 4: Simplify right side
    8,075.17x = 50,030,757.74
  5. Step 5: Solve for x
    x = 50,030,757.74/8,075.17
  6. Step 6: Final answer
    x = 6,195.63

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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.