Home / 8,485.75-11,710.47-4,759.75

Finding the Fourth Proportional to 8,485.75, 11,710.47 and 4,759.75

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Solution

The fourth proportional to 8,485.75, 11,710.47 and 4,759.75 is: 6,568.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,485.75 : 11,710.47 = 4,759.75 : x
  2. Step 2: Convert to fraction form
    8,485.75/11,710.47 = 4,759.75/x
  3. Step 3: Cross multiply
    8,485.75x = 11,710.47 × 4,759.75
  4. Step 4: Simplify right side
    8,485.75x = 55,738,909.58
  5. Step 5: Solve for x
    x = 55,738,909.58/8,485.75
  6. Step 6: Final answer
    x = 6,568.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.