Home / 18,128.14-27,165.93-12,873.44

Finding the Fourth Proportional to 18,128.14, 27,165.93 and 12,873.44

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Solution

The fourth proportional to 18,128.14, 27,165.93 and 12,873.44 is: 19,291.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,128.14 : 27,165.93 = 12,873.44 : x
  2. Step 2: Convert to fraction form
    18,128.14/27,165.93 = 12,873.44/x
  3. Step 3: Cross multiply
    18,128.14x = 27,165.93 × 12,873.44
  4. Step 4: Simplify right side
    18,128.14x = 349,718,989.54
  5. Step 5: Solve for x
    x = 349,718,989.54/18,128.14
  6. Step 6: Final answer
    x = 19,291.50

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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.