Home / 13,559.22-20,339.55-4,205.70

Finding the Fourth Proportional to 13,559.22, 20,339.55 and 4,205.70

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Solution

The fourth proportional to 13,559.22, 20,339.55 and 4,205.70 is: 6,308.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,559.22 : 20,339.55 = 4,205.70 : x
  2. Step 2: Convert to fraction form
    13,559.22/20,339.55 = 4,205.70/x
  3. Step 3: Cross multiply
    13,559.22x = 20,339.55 × 4,205.70
  4. Step 4: Simplify right side
    13,559.22x = 85,542,045.44
  5. Step 5: Solve for x
    x = 85,542,045.44/13,559.22
  6. Step 6: Final answer
    x = 6,308.77

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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.