Home / 8,124.20-11,211.60-4,586.72

Finding the Fourth Proportional to 8,124.20, 11,211.60 and 4,586.72

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Solution

The fourth proportional to 8,124.20, 11,211.60 and 4,586.72 is: 6,329.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,124.20 : 11,211.60 = 4,586.72 : x
  2. Step 2: Convert to fraction form
    8,124.20/11,211.60 = 4,586.72/x
  3. Step 3: Cross multiply
    8,124.20x = 11,211.60 × 4,586.72
  4. Step 4: Simplify right side
    8,124.20x = 51,424,469.95
  5. Step 5: Solve for x
    x = 51,424,469.95/8,124.20
  6. Step 6: Final answer
    x = 6,329.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.