Home / 13,012.88-19,520.82-4,576.79

Finding the Fourth Proportional to 13,012.88, 19,520.82 and 4,576.79

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Solution

The fourth proportional to 13,012.88, 19,520.82 and 4,576.79 is: 6,865.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,012.88 : 19,520.82 = 4,576.79 : x
  2. Step 2: Convert to fraction form
    13,012.88/19,520.82 = 4,576.79/x
  3. Step 3: Cross multiply
    13,012.88x = 19,520.82 × 4,576.79
  4. Step 4: Simplify right side
    13,012.88x = 89,342,742.57
  5. Step 5: Solve for x
    x = 89,342,742.57/13,012.88
  6. Step 6: Final answer
    x = 6,865.72

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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.