Home / 6,942.12-10,402.86-4,165.54

Finding the Fourth Proportional to 6,942.12, 10,402.86 and 4,165.54

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Solution

The fourth proportional to 6,942.12, 10,402.86 and 4,165.54 is: 6,242.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,942.12 : 10,402.86 = 4,165.54 : x
  2. Step 2: Convert to fraction form
    6,942.12/10,402.86 = 4,165.54/x
  3. Step 3: Cross multiply
    6,942.12x = 10,402.86 × 4,165.54
  4. Step 4: Simplify right side
    6,942.12x = 43,333,529.44
  5. Step 5: Solve for x
    x = 43,333,529.44/6,942.12
  6. Step 6: Final answer
    x = 6,242.12

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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.