Home / 18,078.21-27,102.74-10,276.29

Finding the Fourth Proportional to 18,078.21, 27,102.74 and 10,276.29

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Solution

The fourth proportional to 18,078.21, 27,102.74 and 10,276.29 is: 15,406.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,078.21 : 27,102.74 = 10,276.29 : x
  2. Step 2: Convert to fraction form
    18,078.21/27,102.74 = 10,276.29/x
  3. Step 3: Cross multiply
    18,078.21x = 27,102.74 × 10,276.29
  4. Step 4: Simplify right side
    18,078.21x = 278,515,564.65
  5. Step 5: Solve for x
    x = 278,515,564.65/18,078.21
  6. Step 6: Final answer
    x = 15,406.15

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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.