Home / 8,809.75-13,188.57-7,716.25

Finding the Fourth Proportional to 8,809.75, 13,188.57 and 7,716.25

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Solution

The fourth proportional to 8,809.75, 13,188.57 and 7,716.25 is: 11,551.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,809.75 : 13,188.57 = 7,716.25 : x
  2. Step 2: Convert to fraction form
    8,809.75/13,188.57 = 7,716.25/x
  3. Step 3: Cross multiply
    8,809.75x = 13,188.57 × 7,716.25
  4. Step 4: Simplify right side
    8,809.75x = 101,766,303.26
  5. Step 5: Solve for x
    x = 101,766,303.26/8,809.75
  6. Step 6: Final answer
    x = 11,551.55

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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.