Home / 8,782.92-12,120.26-4,804.02

Finding the Fourth Proportional to 8,782.92, 12,120.26 and 4,804.02

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Solution

The fourth proportional to 8,782.92, 12,120.26 and 4,804.02 is: 6,629.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,782.92 : 12,120.26 = 4,804.02 : x
  2. Step 2: Convert to fraction form
    8,782.92/12,120.26 = 4,804.02/x
  3. Step 3: Cross multiply
    8,782.92x = 12,120.26 × 4,804.02
  4. Step 4: Simplify right side
    8,782.92x = 58,225,971.45
  5. Step 5: Solve for x
    x = 58,225,971.45/8,782.92
  6. Step 6: Final answer
    x = 6,629.45

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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.