Home / 8,028.79-11,075.30-5,642.43

Finding the Fourth Proportional to 8,028.79, 11,075.30 and 5,642.43

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Solution

The fourth proportional to 8,028.79, 11,075.30 and 5,642.43 is: 7,783.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,028.79 : 11,075.30 = 5,642.43 : x
  2. Step 2: Convert to fraction form
    8,028.79/11,075.30 = 5,642.43/x
  3. Step 3: Cross multiply
    8,028.79x = 11,075.30 × 5,642.43
  4. Step 4: Simplify right side
    8,028.79x = 62,491,556.39
  5. Step 5: Solve for x
    x = 62,491,556.39/8,028.79
  6. Step 6: Final answer
    x = 7,783.44

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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.