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Finding the Fourth Proportional to 13,179.58, 18,194.41 and 8,953.00

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Solution

The fourth proportional to 13,179.58, 18,194.41 and 8,953.00 is: 12,359.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,179.58 : 18,194.41 = 8,953.00 : x
  2. Step 2: Convert to fraction form
    13,179.58/18,194.41 = 8,953.00/x
  3. Step 3: Cross multiply
    13,179.58x = 18,194.41 × 8,953.00
  4. Step 4: Simplify right side
    13,179.58x = 162,894,461.76
  5. Step 5: Solve for x
    x = 162,894,461.76/13,179.58
  6. Step 6: Final answer
    x = 12,359.61

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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.