Home / 14,112.82-21,170.64-3,724.57

Finding the Fourth Proportional to 14,112.82, 21,170.64 and 3,724.57

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Solution

The fourth proportional to 14,112.82, 21,170.64 and 3,724.57 is: 5,587.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,112.82 : 21,170.64 = 3,724.57 : x
  2. Step 2: Convert to fraction form
    14,112.82/21,170.64 = 3,724.57/x
  3. Step 3: Cross multiply
    14,112.82x = 21,170.64 × 3,724.57
  4. Step 4: Simplify right side
    14,112.82x = 78,851,491.67
  5. Step 5: Solve for x
    x = 78,851,491.67/14,112.82
  6. Step 6: Final answer
    x = 5,587.23

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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.