Home / 18,455.45-27,636.84-11,406.47

Finding the Fourth Proportional to 18,455.45, 27,636.84 and 11,406.47

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Solution

The fourth proportional to 18,455.45, 27,636.84 and 11,406.47 is: 17,081.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,455.45 : 27,636.84 = 11,406.47 : x
  2. Step 2: Convert to fraction form
    18,455.45/27,636.84 = 11,406.47/x
  3. Step 3: Cross multiply
    18,455.45x = 27,636.84 × 11,406.47
  4. Step 4: Simplify right side
    18,455.45x = 315,238,648.17
  5. Step 5: Solve for x
    x = 315,238,648.17/18,455.45
  6. Step 6: Final answer
    x = 17,081.06

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1.5x scale

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.