Home / 12,892.26-19,338.40-4,571.79

Finding the Fourth Proportional to 12,892.26, 19,338.40 and 4,571.79

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Solution

The fourth proportional to 12,892.26, 19,338.40 and 4,571.79 is: 6,857.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,892.26 : 19,338.40 = 4,571.79 : x
  2. Step 2: Convert to fraction form
    12,892.26/19,338.40 = 4,571.79/x
  3. Step 3: Cross multiply
    12,892.26x = 19,338.40 × 4,571.79
  4. Step 4: Simplify right side
    12,892.26x = 88,411,119.99
  5. Step 5: Solve for x
    x = 88,411,119.99/12,892.26
  6. Step 6: Final answer
    x = 6,857.69

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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.