Home / 13,841.06-20,761.46-3,980.30

Finding the Fourth Proportional to 13,841.06, 20,761.46 and 3,980.30

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Solution

The fourth proportional to 13,841.06, 20,761.46 and 3,980.30 is: 5,970.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,841.06 : 20,761.46 = 3,980.30 : x
  2. Step 2: Convert to fraction form
    13,841.06/20,761.46 = 3,980.30/x
  3. Step 3: Cross multiply
    13,841.06x = 20,761.46 × 3,980.30
  4. Step 4: Simplify right side
    13,841.06x = 82,636,839.24
  5. Step 5: Solve for x
    x = 82,636,839.24/13,841.06
  6. Step 6: Final answer
    x = 5,970.41

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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.