Home / 7,745.50-10,687.08-4,388.02

Finding the Fourth Proportional to 7,745.50, 10,687.08 and 4,388.02

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Solution

The fourth proportional to 7,745.50, 10,687.08 and 4,388.02 is: 6,054.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,745.50 : 10,687.08 = 4,388.02 : x
  2. Step 2: Convert to fraction form
    7,745.50/10,687.08 = 4,388.02/x
  3. Step 3: Cross multiply
    7,745.50x = 10,687.08 × 4,388.02
  4. Step 4: Simplify right side
    7,745.50x = 46,895,120.78
  5. Step 5: Solve for x
    x = 46,895,120.78/7,745.50
  6. Step 6: Final answer
    x = 6,054.50

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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.