Home / 13,587.44-20,381.60-4,100.18

Finding the Fourth Proportional to 13,587.44, 20,381.60 and 4,100.18

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Solution

The fourth proportional to 13,587.44, 20,381.60 and 4,100.18 is: 6,150.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,587.44 : 20,381.60 = 4,100.18 : x
  2. Step 2: Convert to fraction form
    13,587.44/20,381.60 = 4,100.18/x
  3. Step 3: Cross multiply
    13,587.44x = 20,381.60 × 4,100.18
  4. Step 4: Simplify right side
    13,587.44x = 83,568,137.03
  5. Step 5: Solve for x
    x = 83,568,137.03/13,587.44
  6. Step 6: Final answer
    x = 6,150.40

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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.