Home / 19,139.46-28,713.33-5,811.36

Finding the Fourth Proportional to 19,139.46, 28,713.33 and 5,811.36

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Solution

The fourth proportional to 19,139.46, 28,713.33 and 5,811.36 is: 8,718.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,139.46 : 28,713.33 = 5,811.36 : x
  2. Step 2: Convert to fraction form
    19,139.46/28,713.33 = 5,811.36/x
  3. Step 3: Cross multiply
    19,139.46x = 28,713.33 × 5,811.36
  4. Step 4: Simplify right side
    19,139.46x = 166,863,497.43
  5. Step 5: Solve for x
    x = 166,863,497.43/19,139.46
  6. Step 6: Final answer
    x = 8,718.30

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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.