Home / 7,986.84-11,025.78-6,190.36

Finding the Fourth Proportional to 7,986.84, 11,025.78 and 6,190.36

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Solution

The fourth proportional to 7,986.84, 11,025.78 and 6,190.36 is: 8,545.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,986.84 : 11,025.78 = 6,190.36 : x
  2. Step 2: Convert to fraction form
    7,986.84/11,025.78 = 6,190.36/x
  3. Step 3: Cross multiply
    7,986.84x = 11,025.78 × 6,190.36
  4. Step 4: Simplify right side
    7,986.84x = 68,253,547.48
  5. Step 5: Solve for x
    x = 68,253,547.48/7,986.84
  6. Step 6: Final answer
    x = 8,545.75

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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.