Home / 13,200.50-19,800.76-3,966.50

Finding the Fourth Proportional to 13,200.50, 19,800.76 and 3,966.50

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Solution

The fourth proportional to 13,200.50, 19,800.76 and 3,966.50 is: 5,949.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,200.50 : 19,800.76 = 3,966.50 : x
  2. Step 2: Convert to fraction form
    13,200.50/19,800.76 = 3,966.50/x
  3. Step 3: Cross multiply
    13,200.50x = 19,800.76 × 3,966.50
  4. Step 4: Simplify right side
    13,200.50x = 78,539,714.54
  5. Step 5: Solve for x
    x = 78,539,714.54/13,200.50
  6. Step 6: Final answer
    x = 5,949.75

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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.