Home / 7,163.20-9,885.54-4,019.59

Finding the Fourth Proportional to 7,163.20, 9,885.54 and 4,019.59

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Solution

The fourth proportional to 7,163.20, 9,885.54 and 4,019.59 is: 5,547.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,163.20 : 9,885.54 = 4,019.59 : x
  2. Step 2: Convert to fraction form
    7,163.20/9,885.54 = 4,019.59/x
  3. Step 3: Cross multiply
    7,163.20x = 9,885.54 × 4,019.59
  4. Step 4: Simplify right side
    7,163.20x = 39,735,817.73
  5. Step 5: Solve for x
    x = 39,735,817.73/7,163.20
  6. Step 6: Final answer
    x = 5,547.22

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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.