Home / 12,758.64-19,140.96-3,873.84

Finding the Fourth Proportional to 12,758.64, 19,140.96 and 3,873.84

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Solution

The fourth proportional to 12,758.64, 19,140.96 and 3,873.84 is: 5,811.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,758.64 : 19,140.96 = 3,873.84 : x
  2. Step 2: Convert to fraction form
    12,758.64/19,140.96 = 3,873.84/x
  3. Step 3: Cross multiply
    12,758.64x = 19,140.96 × 3,873.84
  4. Step 4: Simplify right side
    12,758.64x = 74,149,016.49
  5. Step 5: Solve for x
    x = 74,149,016.49/12,758.64
  6. Step 6: Final answer
    x = 5,811.67

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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.