Home / 7,639.86-11,450.16-4,354.80

Finding the Fourth Proportional to 7,639.86, 11,450.16 and 4,354.80

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Solution

The fourth proportional to 7,639.86, 11,450.16 and 4,354.80 is: 6,526.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639.86 : 11,450.16 = 4,354.80 : x
  2. Step 2: Convert to fraction form
    7,639.86/11,450.16 = 4,354.80/x
  3. Step 3: Cross multiply
    7,639.86x = 11,450.16 × 4,354.80
  4. Step 4: Simplify right side
    7,639.86x = 49,863,156.77
  5. Step 5: Solve for x
    x = 49,863,156.77/7,639.86
  6. Step 6: Final answer
    x = 6,526.71

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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.