Home / 18,108.72-24,986.28-12,147.96

Finding the Fourth Proportional to 18,108.72, 24,986.28 and 12,147.96

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Solution

The fourth proportional to 18,108.72, 24,986.28 and 12,147.96 is: 16,761.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,108.72 : 24,986.28 = 12,147.96 : x
  2. Step 2: Convert to fraction form
    18,108.72/24,986.28 = 12,147.96/x
  3. Step 3: Cross multiply
    18,108.72x = 24,986.28 × 12,147.96
  4. Step 4: Simplify right side
    18,108.72x = 303,532,329.99
  5. Step 5: Solve for x
    x = 303,532,329.99/18,108.72
  6. Step 6: Final answer
    x = 16,761.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.