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Finding the Fourth Proportional to 6,913.40, 10,365.06 and 3,997.40

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Solution

The fourth proportional to 6,913.40, 10,365.06 and 3,997.40 is: 5,993.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,913.40 : 10,365.06 = 3,997.40 : x
  2. Step 2: Convert to fraction form
    6,913.40/10,365.06 = 3,997.40/x
  3. Step 3: Cross multiply
    6,913.40x = 10,365.06 × 3,997.40
  4. Step 4: Simplify right side
    6,913.40x = 41,433,290.84
  5. Step 5: Solve for x
    x = 41,433,290.84/6,913.40
  6. Step 6: Final answer
    x = 5,993.19

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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.