Home / 7,629.76-11,429.25-6,393.70

Finding the Fourth Proportional to 7,629.76, 11,429.25 and 6,393.70

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Solution

The fourth proportional to 7,629.76, 11,429.25 and 6,393.70 is: 9,577.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,629.76 : 11,429.25 = 6,393.70 : x
  2. Step 2: Convert to fraction form
    7,629.76/11,429.25 = 6,393.70/x
  3. Step 3: Cross multiply
    7,629.76x = 11,429.25 × 6,393.70
  4. Step 4: Simplify right side
    7,629.76x = 73,075,195.73
  5. Step 5: Solve for x
    x = 73,075,195.73/7,629.76
  6. Step 6: Final answer
    x = 9,577.65

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1.5x scale

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.