Home / 13,180.50-19,770.75-3,946.50

Finding the Fourth Proportional to 13,180.50, 19,770.75 and 3,946.50

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Solution

The fourth proportional to 13,180.50, 19,770.75 and 3,946.50 is: 5,919.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,180.50 : 19,770.75 = 3,946.50 : x
  2. Step 2: Convert to fraction form
    13,180.50/19,770.75 = 3,946.50/x
  3. Step 3: Cross multiply
    13,180.50x = 19,770.75 × 3,946.50
  4. Step 4: Simplify right side
    13,180.50x = 78,025,264.88
  5. Step 5: Solve for x
    x = 78,025,264.88/13,180.50
  6. Step 6: Final answer
    x = 5,919.75

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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.