Home / 13,079.59-19,619.21-3,218.95

Finding the Fourth Proportional to 13,079.59, 19,619.21 and 3,218.95

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Solution

The fourth proportional to 13,079.59, 19,619.21 and 3,218.95 is: 4,828.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,079.59 : 19,619.21 = 3,218.95 : x
  2. Step 2: Convert to fraction form
    13,079.59/19,619.21 = 3,218.95/x
  3. Step 3: Cross multiply
    13,079.59x = 19,619.21 × 3,218.95
  4. Step 4: Simplify right side
    13,079.59x = 63,153,190.89
  5. Step 5: Solve for x
    x = 63,153,190.89/13,079.59
  6. Step 6: Final answer
    x = 4,828.38

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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.