Home / 13,880.42-20,819.25-4,520.06

Finding the Fourth Proportional to 13,880.42, 20,819.25 and 4,520.06

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Solution

The fourth proportional to 13,880.42, 20,819.25 and 4,520.06 is: 6,779.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,880.42 : 20,819.25 = 4,520.06 : x
  2. Step 2: Convert to fraction form
    13,880.42/20,819.25 = 4,520.06/x
  3. Step 3: Cross multiply
    13,880.42x = 20,819.25 × 4,520.06
  4. Step 4: Simplify right side
    13,880.42x = 94,104,155.06
  5. Step 5: Solve for x
    x = 94,104,155.06/13,880.42
  6. Step 6: Final answer
    x = 6,779.64

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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.