Home / 7,759.74-11,639.28-6,716.34

Finding the Fourth Proportional to 7,759.74, 11,639.28 and 6,716.34

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Solution

The fourth proportional to 7,759.74, 11,639.28 and 6,716.34 is: 10,074.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,759.74 : 11,639.28 = 6,716.34 : x
  2. Step 2: Convert to fraction form
    7,759.74/11,639.28 = 6,716.34/x
  3. Step 3: Cross multiply
    7,759.74x = 11,639.28 × 6,716.34
  4. Step 4: Simplify right side
    7,759.74x = 78,173,361.84
  5. Step 5: Solve for x
    x = 78,173,361.84/7,759.74
  6. Step 6: Final answer
    x = 10,074.22

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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.