Home / 14,142.12-19,511.62-8,173

Finding the Fourth Proportional to 14,142.12, 19,511.62 and 8,173

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Solution

The fourth proportional to 14,142.12, 19,511.62 and 8,173 is: 11,276.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,142.12 : 19,511.62 = 8,173 : x
  2. Step 2: Convert to fraction form
    14,142.12/19,511.62 = 8,173/x
  3. Step 3: Cross multiply
    14,142.12x = 19,511.62 × 8,173
  4. Step 4: Simplify right side
    14,142.12x = 159,468,470.26
  5. Step 5: Solve for x
    x = 159,468,470.26/14,142.12
  6. Step 6: Final answer
    x = 11,276.14

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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.