Home / 13,648.14-20,468.43-3,786.66

Finding the Fourth Proportional to 13,648.14, 20,468.43 and 3,786.66

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Solution

The fourth proportional to 13,648.14, 20,468.43 and 3,786.66 is: 5,678.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,648.14 : 20,468.43 = 3,786.66 : x
  2. Step 2: Convert to fraction form
    13,648.14/20,468.43 = 3,786.66/x
  3. Step 3: Cross multiply
    13,648.14x = 20,468.43 × 3,786.66
  4. Step 4: Simplify right side
    13,648.14x = 77,506,985.14
  5. Step 5: Solve for x
    x = 77,506,985.14/13,648.14
  6. Step 6: Final answer
    x = 5,678.94

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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.