Home / 12,961.28-19,443.84-3,726.08

Finding the Fourth Proportional to 12,961.28, 19,443.84 and 3,726.08

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Solution

The fourth proportional to 12,961.28, 19,443.84 and 3,726.08 is: 5,589.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,961.28 : 19,443.84 = 3,726.08 : x
  2. Step 2: Convert to fraction form
    12,961.28/19,443.84 = 3,726.08/x
  3. Step 3: Cross multiply
    12,961.28x = 19,443.84 × 3,726.08
  4. Step 4: Simplify right side
    12,961.28x = 72,449,303.35
  5. Step 5: Solve for x
    x = 72,449,303.35/12,961.28
  6. Step 6: Final answer
    x = 5,589.67

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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.