Home / 26,390.61-39,579.84-7,666.38

Finding the Fourth Proportional to 26,390.61, 39,579.84 and 7,666.38

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Solution

The fourth proportional to 26,390.61, 39,579.84 and 7,666.38 is: 11,497.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,390.61 : 39,579.84 = 7,666.38 : x
  2. Step 2: Convert to fraction form
    26,390.61/39,579.84 = 7,666.38/x
  3. Step 3: Cross multiply
    26,390.61x = 39,579.84 × 7,666.38
  4. Step 4: Simplify right side
    26,390.61x = 303,434,093.78
  5. Step 5: Solve for x
    x = 303,434,093.78/26,390.61
  6. Step 6: Final answer
    x = 11,497.81

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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.