Home / 12,965.88-19,423.26-6,729.96

Finding the Fourth Proportional to 12,965.88, 19,423.26 and 6,729.96

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Solution

The fourth proportional to 12,965.88, 19,423.26 and 6,729.96 is: 10,081.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,965.88 : 19,423.26 = 6,729.96 : x
  2. Step 2: Convert to fraction form
    12,965.88/19,423.26 = 6,729.96/x
  3. Step 3: Cross multiply
    12,965.88x = 19,423.26 × 6,729.96
  4. Step 4: Simplify right side
    12,965.88x = 130,717,762.87
  5. Step 5: Solve for x
    x = 130,717,762.87/12,965.88
  6. Step 6: Final answer
    x = 10,081.67

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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.