Home / 14,138.63-19,511.64-8,089.44

Finding the Fourth Proportional to 14,138.63, 19,511.64 and 8,089.44

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Solution

The fourth proportional to 14,138.63, 19,511.64 and 8,089.44 is: 11,163.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,138.63 : 19,511.64 = 8,089.44 : x
  2. Step 2: Convert to fraction form
    14,138.63/19,511.64 = 8,089.44/x
  3. Step 3: Cross multiply
    14,138.63x = 19,511.64 × 8,089.44
  4. Step 4: Simplify right side
    14,138.63x = 157,838,241.08
  5. Step 5: Solve for x
    x = 157,838,241.08/14,138.63
  6. Step 6: Final answer
    x = 11,163.62

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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.