Home / 8,759.44-12,085.84-5,619.88

Finding the Fourth Proportional to 8,759.44, 12,085.84 and 5,619.88

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Solution

The fourth proportional to 8,759.44, 12,085.84 and 5,619.88 is: 7,754.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,759.44 : 12,085.84 = 5,619.88 : x
  2. Step 2: Convert to fraction form
    8,759.44/12,085.84 = 5,619.88/x
  3. Step 3: Cross multiply
    8,759.44x = 12,085.84 × 5,619.88
  4. Step 4: Simplify right side
    8,759.44x = 67,920,970.50
  5. Step 5: Solve for x
    x = 67,920,970.50/8,759.44
  6. Step 6: Final answer
    x = 7,754.03

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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.