Home / 7,847.88-11,774.16-3,165.48

Finding the Fourth Proportional to 7,847.88, 11,774.16 and 3,165.48

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Solution

The fourth proportional to 7,847.88, 11,774.16 and 3,165.48 is: 4,749.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,847.88 : 11,774.16 = 3,165.48 : x
  2. Step 2: Convert to fraction form
    7,847.88/11,774.16 = 3,165.48/x
  3. Step 3: Cross multiply
    7,847.88x = 11,774.16 × 3,165.48
  4. Step 4: Simplify right side
    7,847.88x = 37,270,868.00
  5. Step 5: Solve for x
    x = 37,270,868.00/7,847.88
  6. Step 6: Final answer
    x = 4,749.16

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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.