Home / 7,465.55-11,173.70-4,128.66

Finding the Fourth Proportional to 7,465.55, 11,173.70 and 4,128.66

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Solution

The fourth proportional to 7,465.55, 11,173.70 and 4,128.66 is: 6,179.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,465.55 : 11,173.70 = 4,128.66 : x
  2. Step 2: Convert to fraction form
    7,465.55/11,173.70 = 4,128.66/x
  3. Step 3: Cross multiply
    7,465.55x = 11,173.70 × 4,128.66
  4. Step 4: Simplify right side
    7,465.55x = 46,132,387.60
  5. Step 5: Solve for x
    x = 46,132,387.60/7,465.55
  6. Step 6: Final answer
    x = 6,179.37

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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.