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Finding the Fourth Proportional to 6,378.42, 9,567.64 and 1,995.89

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Solution

The fourth proportional to 6,378.42, 9,567.64 and 1,995.89 is: 2,993.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,378.42 : 9,567.64 = 1,995.89 : x
  2. Step 2: Convert to fraction form
    6,378.42/9,567.64 = 1,995.89/x
  3. Step 3: Cross multiply
    6,378.42x = 9,567.64 × 1,995.89
  4. Step 4: Simplify right side
    6,378.42x = 19,095,911.66
  5. Step 5: Solve for x
    x = 19,095,911.66/6,378.42
  6. Step 6: Final answer
    x = 2,993.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.