Home / 11,875.08-17,812.62-3,109.98

Finding the Fourth Proportional to 11,875.08, 17,812.62 and 3,109.98

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Solution

The fourth proportional to 11,875.08, 17,812.62 and 3,109.98 is: 4,664.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,875.08 : 17,812.62 = 3,109.98 : x
  2. Step 2: Convert to fraction form
    11,875.08/17,812.62 = 3,109.98/x
  3. Step 3: Cross multiply
    11,875.08x = 17,812.62 × 3,109.98
  4. Step 4: Simplify right side
    11,875.08x = 55,396,891.95
  5. Step 5: Solve for x
    x = 55,396,891.95/11,875.08
  6. Step 6: Final answer
    x = 4,664.97

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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.