Home / 18,018.44-27,024.50-8,155.40

Finding the Fourth Proportional to 18,018.44, 27,024.50 and 8,155.40

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Solution

The fourth proportional to 18,018.44, 27,024.50 and 8,155.40 is: 12,231.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,018.44 : 27,024.50 = 8,155.40 : x
  2. Step 2: Convert to fraction form
    18,018.44/27,024.50 = 8,155.40/x
  3. Step 3: Cross multiply
    18,018.44x = 27,024.50 × 8,155.40
  4. Step 4: Simplify right side
    18,018.44x = 220,395,607.30
  5. Step 5: Solve for x
    x = 220,395,607.30/18,018.44
  6. Step 6: Final answer
    x = 12,231.67

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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.