Home / 13,718.03-20,573.96-8,172.95

Finding the Fourth Proportional to 13,718.03, 20,573.96 and 8,172.95

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Solution

The fourth proportional to 13,718.03, 20,573.96 and 8,172.95 is: 12,257.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,718.03 : 20,573.96 = 8,172.95 : x
  2. Step 2: Convert to fraction form
    13,718.03/20,573.96 = 8,172.95/x
  3. Step 3: Cross multiply
    13,718.03x = 20,573.96 × 8,172.95
  4. Step 4: Simplify right side
    13,718.03x = 168,149,802.65
  5. Step 5: Solve for x
    x = 168,149,802.65/13,718.03
  6. Step 6: Final answer
    x = 12,257.58

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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.