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Finding the Fourth Proportional to 14,442.58, 19,930.08 and 8,153.74

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Solution

The fourth proportional to 14,442.58, 19,930.08 and 8,153.74 is: 11,251.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,442.58 : 19,930.08 = 8,153.74 : x
  2. Step 2: Convert to fraction form
    14,442.58/19,930.08 = 8,153.74/x
  3. Step 3: Cross multiply
    14,442.58x = 19,930.08 × 8,153.74
  4. Step 4: Simplify right side
    14,442.58x = 162,504,690.50
  5. Step 5: Solve for x
    x = 162,504,690.50/14,442.58
  6. Step 6: Final answer
    x = 11,251.78

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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.