Home / 13,211.21-19,818.87-4,445.44

Finding the Fourth Proportional to 13,211.21, 19,818.87 and 4,445.44

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Solution

The fourth proportional to 13,211.21, 19,818.87 and 4,445.44 is: 6,668.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,211.21 : 19,818.87 = 4,445.44 : x
  2. Step 2: Convert to fraction form
    13,211.21/19,818.87 = 4,445.44/x
  3. Step 3: Cross multiply
    13,211.21x = 19,818.87 × 4,445.44
  4. Step 4: Simplify right side
    13,211.21x = 88,103,605.56
  5. Step 5: Solve for x
    x = 88,103,605.56/13,211.21
  6. Step 6: Final answer
    x = 6,668.85

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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.