Home / 7,163.34-9,885.36-4,019.55

Finding the Fourth Proportional to 7,163.34, 9,885.36 and 4,019.55

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Solution

The fourth proportional to 7,163.34, 9,885.36 and 4,019.55 is: 5,546.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,163.34 : 9,885.36 = 4,019.55 : x
  2. Step 2: Convert to fraction form
    7,163.34/9,885.36 = 4,019.55/x
  3. Step 3: Cross multiply
    7,163.34x = 9,885.36 × 4,019.55
  4. Step 4: Simplify right side
    7,163.34x = 39,734,698.79
  5. Step 5: Solve for x
    x = 39,734,698.79/7,163.34
  6. Step 6: Final answer
    x = 5,546.95

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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.