Home / 8,571.45-12,858.12-2,726.69

Finding the Fourth Proportional to 8,571.45, 12,858.12 and 2,726.69

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Solution

The fourth proportional to 8,571.45, 12,858.12 and 2,726.69 is: 4,090.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,571.45 : 12,858.12 = 2,726.69 : x
  2. Step 2: Convert to fraction form
    8,571.45/12,858.12 = 2,726.69/x
  3. Step 3: Cross multiply
    8,571.45x = 12,858.12 × 2,726.69
  4. Step 4: Simplify right side
    8,571.45x = 35,060,139.37
  5. Step 5: Solve for x
    x = 35,060,139.37/8,571.45
  6. Step 6: Final answer
    x = 4,090.34

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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.