Home / 9,145.76-13,718.34-3,877.38

Finding the Fourth Proportional to 9,145.76, 13,718.34 and 3,877.38

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Solution

The fourth proportional to 9,145.76, 13,718.34 and 3,877.38 is: 5,815.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,145.76 : 13,718.34 = 3,877.38 : x
  2. Step 2: Convert to fraction form
    9,145.76/13,718.34 = 3,877.38/x
  3. Step 3: Cross multiply
    9,145.76x = 13,718.34 × 3,877.38
  4. Step 4: Simplify right side
    9,145.76x = 53,191,241.75
  5. Step 5: Solve for x
    x = 53,191,241.75/9,145.76
  6. Step 6: Final answer
    x = 5,815.94

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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.