Home / 7,790.18-11,670.14-6,917.54

Finding the Fourth Proportional to 7,790.18, 11,670.14 and 6,917.54

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Solution

The fourth proportional to 7,790.18, 11,670.14 and 6,917.54 is: 10,362.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,790.18 : 11,670.14 = 6,917.54 : x
  2. Step 2: Convert to fraction form
    7,790.18/11,670.14 = 6,917.54/x
  3. Step 3: Cross multiply
    7,790.18x = 11,670.14 × 6,917.54
  4. Step 4: Simplify right side
    7,790.18x = 80,728,660.26
  5. Step 5: Solve for x
    x = 80,728,660.26/7,790.18
  6. Step 6: Final answer
    x = 10,362.87

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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.