Home / 8,772.54-12,107.46-5,371.56

Finding the Fourth Proportional to 8,772.54, 12,107.46 and 5,371.56

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Solution

The fourth proportional to 8,772.54, 12,107.46 and 5,371.56 is: 7,413.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,772.54 : 12,107.46 = 5,371.56 : x
  2. Step 2: Convert to fraction form
    8,772.54/12,107.46 = 5,371.56/x
  3. Step 3: Cross multiply
    8,772.54x = 12,107.46 × 5,371.56
  4. Step 4: Simplify right side
    8,772.54x = 65,035,947.84
  5. Step 5: Solve for x
    x = 65,035,947.84/8,772.54
  6. Step 6: Final answer
    x = 7,413.58

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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.