Home / 13,483.26-20,211.93-8,540.64

Finding the Fourth Proportional to 13,483.26, 20,211.93 and 8,540.64

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Solution

The fourth proportional to 13,483.26, 20,211.93 and 8,540.64 is: 12,802.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,483.26 : 20,211.93 = 8,540.64 : x
  2. Step 2: Convert to fraction form
    13,483.26/20,211.93 = 8,540.64/x
  3. Step 3: Cross multiply
    13,483.26x = 20,211.93 × 8,540.64
  4. Step 4: Simplify right side
    13,483.26x = 172,622,817.84
  5. Step 5: Solve for x
    x = 172,622,817.84/13,483.26
  6. Step 6: Final answer
    x = 12,802.75

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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.