Home / 13,186.54-19,778.29-3,325.91

Finding the Fourth Proportional to 13,186.54, 19,778.29 and 3,325.91

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Solution

The fourth proportional to 13,186.54, 19,778.29 and 3,325.91 is: 4,988.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,186.54 : 19,778.29 = 3,325.91 : x
  2. Step 2: Convert to fraction form
    13,186.54/19,778.29 = 3,325.91/x
  3. Step 3: Cross multiply
    13,186.54x = 19,778.29 × 3,325.91
  4. Step 4: Simplify right side
    13,186.54x = 65,780,705.29
  5. Step 5: Solve for x
    x = 65,780,705.29/13,186.54
  6. Step 6: Final answer
    x = 4,988.47

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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.