Home / 7,809.21-11,713.77-2,615.04

Finding the Fourth Proportional to 7,809.21, 11,713.77 and 2,615.04

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Solution

The fourth proportional to 7,809.21, 11,713.77 and 2,615.04 is: 3,922.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,809.21 : 11,713.77 = 2,615.04 : x
  2. Step 2: Convert to fraction form
    7,809.21/11,713.77 = 2,615.04/x
  3. Step 3: Cross multiply
    7,809.21x = 11,713.77 × 2,615.04
  4. Step 4: Simplify right side
    7,809.21x = 30,631,977.10
  5. Step 5: Solve for x
    x = 30,631,977.10/7,809.21
  6. Step 6: Final answer
    x = 3,922.54

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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.