Home / 8,539.40-11,782.58-5,183.98

Finding the Fourth Proportional to 8,539.40, 11,782.58 and 5,183.98

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Solution

The fourth proportional to 8,539.40, 11,782.58 and 5,183.98 is: 7,152.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,539.40 : 11,782.58 = 5,183.98 : x
  2. Step 2: Convert to fraction form
    8,539.40/11,782.58 = 5,183.98/x
  3. Step 3: Cross multiply
    8,539.40x = 11,782.58 × 5,183.98
  4. Step 4: Simplify right side
    8,539.40x = 61,080,659.07
  5. Step 5: Solve for x
    x = 61,080,659.07/8,539.40
  6. Step 6: Final answer
    x = 7,152.80

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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.