Home / 7,163.75-9,885.98-4,020.01

Finding the Fourth Proportional to 7,163.75, 9,885.98 and 4,020.01

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Solution

The fourth proportional to 7,163.75, 9,885.98 and 4,020.01 is: 5,547.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,163.75 : 9,885.98 = 4,020.01 : x
  2. Step 2: Convert to fraction form
    7,163.75/9,885.98 = 4,020.01/x
  3. Step 3: Cross multiply
    7,163.75x = 9,885.98 × 4,020.01
  4. Step 4: Simplify right side
    7,163.75x = 39,741,738.46
  5. Step 5: Solve for x
    x = 39,741,738.46/7,163.75
  6. Step 6: Final answer
    x = 5,547.62

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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.