Home / 7,431.45-10,255.12-4,448.94

Finding the Fourth Proportional to 7,431.45, 10,255.12 and 4,448.94

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Solution

The fourth proportional to 7,431.45, 10,255.12 and 4,448.94 is: 6,139.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,431.45 : 10,255.12 = 4,448.94 : x
  2. Step 2: Convert to fraction form
    7,431.45/10,255.12 = 4,448.94/x
  3. Step 3: Cross multiply
    7,431.45x = 10,255.12 × 4,448.94
  4. Step 4: Simplify right side
    7,431.45x = 45,624,413.57
  5. Step 5: Solve for x
    x = 45,624,413.57/7,431.45
  6. Step 6: Final answer
    x = 6,139.37

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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.