Home / 14,179.10-19,581.30-11,685.92

Finding the Fourth Proportional to 14,179.10, 19,581.30 and 11,685.92

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Solution

The fourth proportional to 14,179.10, 19,581.30 and 11,685.92 is: 16,138.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,179.10 : 19,581.30 = 11,685.92 : x
  2. Step 2: Convert to fraction form
    14,179.10/19,581.30 = 11,685.92/x
  3. Step 3: Cross multiply
    14,179.10x = 19,581.30 × 11,685.92
  4. Step 4: Simplify right side
    14,179.10x = 228,825,505.30
  5. Step 5: Solve for x
    x = 228,825,505.30/14,179.10
  6. Step 6: Final answer
    x = 16,138.22

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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.