Home / 13,366.22-20,040.21-6,779.70

Finding the Fourth Proportional to 13,366.22, 20,040.21 and 6,779.70

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Solution

The fourth proportional to 13,366.22, 20,040.21 and 6,779.70 is: 10,164.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,366.22 : 20,040.21 = 6,779.70 : x
  2. Step 2: Convert to fraction form
    13,366.22/20,040.21 = 6,779.70/x
  3. Step 3: Cross multiply
    13,366.22x = 20,040.21 × 6,779.70
  4. Step 4: Simplify right side
    13,366.22x = 135,866,611.74
  5. Step 5: Solve for x
    x = 135,866,611.74/13,366.22
  6. Step 6: Final answer
    x = 10,164.93

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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.