Home / 18,138.06-27,200.91-6,289.07

Finding the Fourth Proportional to 18,138.06, 27,200.91 and 6,289.07

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Solution

The fourth proportional to 18,138.06, 27,200.91 and 6,289.07 is: 9,431.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,138.06 : 27,200.91 = 6,289.07 : x
  2. Step 2: Convert to fraction form
    18,138.06/27,200.91 = 6,289.07/x
  3. Step 3: Cross multiply
    18,138.06x = 27,200.91 × 6,289.07
  4. Step 4: Simplify right side
    18,138.06x = 171,068,427.05
  5. Step 5: Solve for x
    x = 171,068,427.05/18,138.06
  6. Step 6: Final answer
    x = 9,431.46

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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.