Home / 12,185.20-18,277.80-8,051.56

Finding the Fourth Proportional to 12,185.20, 18,277.80 and 8,051.56

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Solution

The fourth proportional to 12,185.20, 18,277.80 and 8,051.56 is: 12,077.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,185.20 : 18,277.80 = 8,051.56 : x
  2. Step 2: Convert to fraction form
    12,185.20/18,277.80 = 8,051.56/x
  3. Step 3: Cross multiply
    12,185.20x = 18,277.80 × 8,051.56
  4. Step 4: Simplify right side
    12,185.20x = 147,164,803.37
  5. Step 5: Solve for x
    x = 147,164,803.37/12,185.20
  6. Step 6: Final answer
    x = 12,077.34

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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.