Home / 14,034.15-20,989.26-12,485.07

Finding the Fourth Proportional to 14,034.15, 20,989.26 and 12,485.07

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Solution

The fourth proportional to 14,034.15, 20,989.26 and 12,485.07 is: 18,672.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,034.15 : 20,989.26 = 12,485.07 : x
  2. Step 2: Convert to fraction form
    14,034.15/20,989.26 = 12,485.07/x
  3. Step 3: Cross multiply
    14,034.15x = 20,989.26 × 12,485.07
  4. Step 4: Simplify right side
    14,034.15x = 262,052,380.35
  5. Step 5: Solve for x
    x = 262,052,380.35/14,034.15
  6. Step 6: Final answer
    x = 18,672.48

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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.