Home / 14,108.45-19,469.09-8,439.86

Finding the Fourth Proportional to 14,108.45, 19,469.09 and 8,439.86

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Solution

The fourth proportional to 14,108.45, 19,469.09 and 8,439.86 is: 11,646.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,108.45 : 19,469.09 = 8,439.86 : x
  2. Step 2: Convert to fraction form
    14,108.45/19,469.09 = 8,439.86/x
  3. Step 3: Cross multiply
    14,108.45x = 19,469.09 × 8,439.86
  4. Step 4: Simplify right side
    14,108.45x = 164,316,463.70
  5. Step 5: Solve for x
    x = 164,316,463.70/14,108.45
  6. Step 6: Final answer
    x = 11,646.67

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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.