Home / 12,945.52-19,414.11-4,178.38

Finding the Fourth Proportional to 12,945.52, 19,414.11 and 4,178.38

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Solution

The fourth proportional to 12,945.52, 19,414.11 and 4,178.38 is: 6,266.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,945.52 : 19,414.11 = 4,178.38 : x
  2. Step 2: Convert to fraction form
    12,945.52/19,414.11 = 4,178.38/x
  3. Step 3: Cross multiply
    12,945.52x = 19,414.11 × 4,178.38
  4. Step 4: Simplify right side
    12,945.52x = 81,119,528.94
  5. Step 5: Solve for x
    x = 81,119,528.94/12,945.52
  6. Step 6: Final answer
    x = 6,266.22

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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.