Home / 12,925.43-19,382.09-5,427.39

Finding the Fourth Proportional to 12,925.43, 19,382.09 and 5,427.39

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Solution

The fourth proportional to 12,925.43, 19,382.09 and 5,427.39 is: 8,138.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,925.43 : 19,382.09 = 5,427.39 : x
  2. Step 2: Convert to fraction form
    12,925.43/19,382.09 = 5,427.39/x
  3. Step 3: Cross multiply
    12,925.43x = 19,382.09 × 5,427.39
  4. Step 4: Simplify right side
    12,925.43x = 105,194,058.99
  5. Step 5: Solve for x
    x = 105,194,058.99/12,925.43
  6. Step 6: Final answer
    x = 8,138.54

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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.