Home / 18,145.83-27,221.93-8,286.10

Finding the Fourth Proportional to 18,145.83, 27,221.93 and 8,286.10

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Solution

The fourth proportional to 18,145.83, 27,221.93 and 8,286.10 is: 12,430.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,145.83 : 27,221.93 = 8,286.10 : x
  2. Step 2: Convert to fraction form
    18,145.83/27,221.93 = 8,286.10/x
  3. Step 3: Cross multiply
    18,145.83x = 27,221.93 × 8,286.10
  4. Step 4: Simplify right side
    18,145.83x = 225,563,634.17
  5. Step 5: Solve for x
    x = 225,563,634.17/18,145.83
  6. Step 6: Final answer
    x = 12,430.60

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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.