Home / 12,672.56-18,980.26-6,103.67

Finding the Fourth Proportional to 12,672.56, 18,980.26 and 6,103.67

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Solution

The fourth proportional to 12,672.56, 18,980.26 and 6,103.67 is: 9,141.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,672.56 : 18,980.26 = 6,103.67 : x
  2. Step 2: Convert to fraction form
    12,672.56/18,980.26 = 6,103.67/x
  3. Step 3: Cross multiply
    12,672.56x = 18,980.26 × 6,103.67
  4. Step 4: Simplify right side
    12,672.56x = 115,849,133.39
  5. Step 5: Solve for x
    x = 115,849,133.39/12,672.56
  6. Step 6: Final answer
    x = 9,141.73

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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.