Home / 12,911.08-19,364.54-3,674.92

Finding the Fourth Proportional to 12,911.08, 19,364.54 and 3,674.92

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Solution

The fourth proportional to 12,911.08, 19,364.54 and 3,674.92 is: 5,511.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,911.08 : 19,364.54 = 3,674.92 : x
  2. Step 2: Convert to fraction form
    12,911.08/19,364.54 = 3,674.92/x
  3. Step 3: Cross multiply
    12,911.08x = 19,364.54 × 3,674.92
  4. Step 4: Simplify right side
    12,911.08x = 71,163,135.34
  5. Step 5: Solve for x
    x = 71,163,135.34/12,911.08
  6. Step 6: Final answer
    x = 5,511.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.