Home / 7,163.92-9,886.35-4,020.31

Finding the Fourth Proportional to 7,163.92, 9,886.35 and 4,020.31

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Solution

The fourth proportional to 7,163.92, 9,886.35 and 4,020.31 is: 5,548.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,163.92 : 9,886.35 = 4,020.31 : x
  2. Step 2: Convert to fraction form
    7,163.92/9,886.35 = 4,020.31/x
  3. Step 3: Cross multiply
    7,163.92x = 9,886.35 × 4,020.31
  4. Step 4: Simplify right side
    7,163.92x = 39,746,191.77
  5. Step 5: Solve for x
    x = 39,746,191.77/7,163.92
  6. Step 6: Final answer
    x = 5,548.11

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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.