Home / 7,173.66-9,900.58-4,029.85

Finding the Fourth Proportional to 7,173.66, 9,900.58 and 4,029.85

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Solution

The fourth proportional to 7,173.66, 9,900.58 and 4,029.85 is: 5,561.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,173.66 : 9,900.58 = 4,029.85 : x
  2. Step 2: Convert to fraction form
    7,173.66/9,900.58 = 4,029.85/x
  3. Step 3: Cross multiply
    7,173.66x = 9,900.58 × 4,029.85
  4. Step 4: Simplify right side
    7,173.66x = 39,897,817.49
  5. Step 5: Solve for x
    x = 39,897,817.49/7,173.66
  6. Step 6: Final answer
    x = 5,561.71

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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.