Home / 13,198.76-19,786.62-4,985

Finding the Fourth Proportional to 13,198.76, 19,786.62 and 4,985

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Solution

The fourth proportional to 13,198.76, 19,786.62 and 4,985 is: 7,473.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,198.76 : 19,786.62 = 4,985 : x
  2. Step 2: Convert to fraction form
    13,198.76/19,786.62 = 4,985/x
  3. Step 3: Cross multiply
    13,198.76x = 19,786.62 × 4,985
  4. Step 4: Simplify right side
    13,198.76x = 98,636,300.70
  5. Step 5: Solve for x
    x = 98,636,300.70/13,198.76
  6. Step 6: Final answer
    x = 7,473.15

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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.