Home / 7,986.15-11,019.92-4,448.07

Finding the Fourth Proportional to 7,986.15, 11,019.92 and 4,448.07

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Solution

The fourth proportional to 7,986.15, 11,019.92 and 4,448.07 is: 6,137.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,986.15 : 11,019.92 = 4,448.07 : x
  2. Step 2: Convert to fraction form
    7,986.15/11,019.92 = 4,448.07/x
  3. Step 3: Cross multiply
    7,986.15x = 11,019.92 × 4,448.07
  4. Step 4: Simplify right side
    7,986.15x = 49,017,353.31
  5. Step 5: Solve for x
    x = 49,017,353.31/7,986.15
  6. Step 6: Final answer
    x = 6,137.80

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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.