Home / 11,420.14-17,125.38-4,022.80

Finding the Fourth Proportional to 11,420.14, 17,125.38 and 4,022.80

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Solution

The fourth proportional to 11,420.14, 17,125.38 and 4,022.80 is: 6,032.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,420.14 : 17,125.38 = 4,022.80 : x
  2. Step 2: Convert to fraction form
    11,420.14/17,125.38 = 4,022.80/x
  3. Step 3: Cross multiply
    11,420.14x = 17,125.38 × 4,022.80
  4. Step 4: Simplify right side
    11,420.14x = 68,891,978.66
  5. Step 5: Solve for x
    x = 68,891,978.66/11,420.14
  6. Step 6: Final answer
    x = 6,032.50

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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.