Home / 8,125.03-12,185.78-4,745.56

Finding the Fourth Proportional to 8,125.03, 12,185.78 and 4,745.56

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Solution

The fourth proportional to 8,125.03, 12,185.78 and 4,745.56 is: 7,117.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,125.03 : 12,185.78 = 4,745.56 : x
  2. Step 2: Convert to fraction form
    8,125.03/12,185.78 = 4,745.56/x
  3. Step 3: Cross multiply
    8,125.03x = 12,185.78 × 4,745.56
  4. Step 4: Simplify right side
    8,125.03x = 57,828,350.14
  5. Step 5: Solve for x
    x = 57,828,350.14/8,125.03
  6. Step 6: Final answer
    x = 7,117.31

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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.