Home / 13,147.94-19,727.69-6,906.50

Finding the Fourth Proportional to 13,147.94, 19,727.69 and 6,906.50

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Solution

The fourth proportional to 13,147.94, 19,727.69 and 6,906.50 is: 10,362.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,147.94 : 19,727.69 = 6,906.50 : x
  2. Step 2: Convert to fraction form
    13,147.94/19,727.69 = 6,906.50/x
  3. Step 3: Cross multiply
    13,147.94x = 19,727.69 × 6,906.50
  4. Step 4: Simplify right side
    13,147.94x = 136,249,231.79
  5. Step 5: Solve for x
    x = 136,249,231.79/13,147.94
  6. Step 6: Final answer
    x = 10,362.78

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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.