Home / 7,911.24-11,867.91-2,912.93

Finding the Fourth Proportional to 7,911.24, 11,867.91 and 2,912.93

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Solution

The fourth proportional to 7,911.24, 11,867.91 and 2,912.93 is: 4,369.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,911.24 : 11,867.91 = 2,912.93 : x
  2. Step 2: Convert to fraction form
    7,911.24/11,867.91 = 2,912.93/x
  3. Step 3: Cross multiply
    7,911.24x = 11,867.91 × 2,912.93
  4. Step 4: Simplify right side
    7,911.24x = 34,570,420.75
  5. Step 5: Solve for x
    x = 34,570,420.75/7,911.24
  6. Step 6: Final answer
    x = 4,369.79

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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.