Home / 13,504.50-20,256.66-3,644.78

Finding the Fourth Proportional to 13,504.50, 20,256.66 and 3,644.78

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Solution

The fourth proportional to 13,504.50, 20,256.66 and 3,644.78 is: 5,467.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,504.50 : 20,256.66 = 3,644.78 : x
  2. Step 2: Convert to fraction form
    13,504.50/20,256.66 = 3,644.78/x
  3. Step 3: Cross multiply
    13,504.50x = 20,256.66 × 3,644.78
  4. Step 4: Simplify right side
    13,504.50x = 73,830,967.95
  5. Step 5: Solve for x
    x = 73,830,967.95/13,504.50
  6. Step 6: Final answer
    x = 5,467.14

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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.