Home / 7,666.86-11,503.53-3,286.38

Finding the Fourth Proportional to 7,666.86, 11,503.53 and 3,286.38

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Solution

The fourth proportional to 7,666.86, 11,503.53 and 3,286.38 is: 4,930.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,666.86 : 11,503.53 = 3,286.38 : x
  2. Step 2: Convert to fraction form
    7,666.86/11,503.53 = 3,286.38/x
  3. Step 3: Cross multiply
    7,666.86x = 11,503.53 × 3,286.38
  4. Step 4: Simplify right side
    7,666.86x = 37,804,970.92
  5. Step 5: Solve for x
    x = 37,804,970.92/7,666.86
  6. Step 6: Final answer
    x = 4,930.96

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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.