Home / 8,120.24-11,205.37-4,762.47

Finding the Fourth Proportional to 8,120.24, 11,205.37 and 4,762.47

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Solution

The fourth proportional to 8,120.24, 11,205.37 and 4,762.47 is: 6,571.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,120.24 : 11,205.37 = 4,762.47 : x
  2. Step 2: Convert to fraction form
    8,120.24/11,205.37 = 4,762.47/x
  3. Step 3: Cross multiply
    8,120.24x = 11,205.37 × 4,762.47
  4. Step 4: Simplify right side
    8,120.24x = 53,365,238.46
  5. Step 5: Solve for x
    x = 53,365,238.46/8,120.24
  6. Step 6: Final answer
    x = 6,571.88

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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.