Home / 13,212.45-19,809.27-6,188.67

Finding the Fourth Proportional to 13,212.45, 19,809.27 and 6,188.67

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Solution

The fourth proportional to 13,212.45, 19,809.27 and 6,188.67 is: 9,278.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,212.45 : 19,809.27 = 6,188.67 : x
  2. Step 2: Convert to fraction form
    13,212.45/19,809.27 = 6,188.67/x
  3. Step 3: Cross multiply
    13,212.45x = 19,809.27 × 6,188.67
  4. Step 4: Simplify right side
    13,212.45x = 122,593,034.97
  5. Step 5: Solve for x
    x = 122,593,034.97/13,212.45
  6. Step 6: Final answer
    x = 9,278.60

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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.