Home / 8,391.50-12,586.59-4,879.27

Finding the Fourth Proportional to 8,391.50, 12,586.59 and 4,879.27

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Solution

The fourth proportional to 8,391.50, 12,586.59 and 4,879.27 is: 7,318.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,391.50 : 12,586.59 = 4,879.27 : x
  2. Step 2: Convert to fraction form
    8,391.50/12,586.59 = 4,879.27/x
  3. Step 3: Cross multiply
    8,391.50x = 12,586.59 × 4,879.27
  4. Step 4: Simplify right side
    8,391.50x = 61,413,315.92
  5. Step 5: Solve for x
    x = 61,413,315.92/8,391.50
  6. Step 6: Final answer
    x = 7,318.51

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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.