Home / 7,977.16-11,969.52-4,282.48

Finding the Fourth Proportional to 7,977.16, 11,969.52 and 4,282.48

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Solution

The fourth proportional to 7,977.16, 11,969.52 and 4,282.48 is: 6,425.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,977.16 : 11,969.52 = 4,282.48 : x
  2. Step 2: Convert to fraction form
    7,977.16/11,969.52 = 4,282.48/x
  3. Step 3: Cross multiply
    7,977.16x = 11,969.52 × 4,282.48
  4. Step 4: Simplify right side
    7,977.16x = 51,259,230.01
  5. Step 5: Solve for x
    x = 51,259,230.01/7,977.16
  6. Step 6: Final answer
    x = 6,425.75

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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.