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Finding the Fourth Proportional to 14,418.71, 19,901.45 and 8,134.73

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Solution

The fourth proportional to 14,418.71, 19,901.45 and 8,134.73 is: 11,227.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,418.71 : 19,901.45 = 8,134.73 : x
  2. Step 2: Convert to fraction form
    14,418.71/19,901.45 = 8,134.73/x
  3. Step 3: Cross multiply
    14,418.71x = 19,901.45 × 8,134.73
  4. Step 4: Simplify right side
    14,418.71x = 161,892,922.36
  5. Step 5: Solve for x
    x = 161,892,922.36/14,418.71
  6. Step 6: Final answer
    x = 11,227.98

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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.