Home / 14,986.12-20,679.37-8,271.32

Finding the Fourth Proportional to 14,986.12, 20,679.37 and 8,271.32

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Solution

The fourth proportional to 14,986.12, 20,679.37 and 8,271.32 is: 11,413.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,986.12 : 20,679.37 = 8,271.32 : x
  2. Step 2: Convert to fraction form
    14,986.12/20,679.37 = 8,271.32/x
  3. Step 3: Cross multiply
    14,986.12x = 20,679.37 × 8,271.32
  4. Step 4: Simplify right side
    14,986.12x = 171,045,583.27
  5. Step 5: Solve for x
    x = 171,045,583.27/14,986.12
  6. Step 6: Final answer
    x = 11,413.60

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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.