Home / 14,138.34-19,505.32-8,168.91

Finding the Fourth Proportional to 14,138.34, 19,505.32 and 8,168.91

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Solution

The fourth proportional to 14,138.34, 19,505.32 and 8,168.91 is: 11,269.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,138.34 : 19,505.32 = 8,168.91 : x
  2. Step 2: Convert to fraction form
    14,138.34/19,505.32 = 8,168.91/x
  3. Step 3: Cross multiply
    14,138.34x = 19,505.32 × 8,168.91
  4. Step 4: Simplify right side
    14,138.34x = 159,337,183.18
  5. Step 5: Solve for x
    x = 159,337,183.18/14,138.34
  6. Step 6: Final answer
    x = 11,269.87

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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.