Home / 12,738.15-17,571.41-8,014.23

Finding the Fourth Proportional to 12,738.15, 17,571.41 and 8,014.23

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Solution

The fourth proportional to 12,738.15, 17,571.41 and 8,014.23 is: 11,055.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,738.15 : 17,571.41 = 8,014.23 : x
  2. Step 2: Convert to fraction form
    12,738.15/17,571.41 = 8,014.23/x
  3. Step 3: Cross multiply
    12,738.15x = 17,571.41 × 8,014.23
  4. Step 4: Simplify right side
    12,738.15x = 140,821,281.09
  5. Step 5: Solve for x
    x = 140,821,281.09/12,738.15
  6. Step 6: Final answer
    x = 11,055.08

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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.