Home / 12,895.38-19,351.71-4,687.38

Finding the Fourth Proportional to 12,895.38, 19,351.71 and 4,687.38

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Solution

The fourth proportional to 12,895.38, 19,351.71 and 4,687.38 is: 7,034.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,895.38 : 19,351.71 = 4,687.38 : x
  2. Step 2: Convert to fraction form
    12,895.38/19,351.71 = 4,687.38/x
  3. Step 3: Cross multiply
    12,895.38x = 19,351.71 × 4,687.38
  4. Step 4: Simplify right side
    12,895.38x = 90,708,818.42
  5. Step 5: Solve for x
    x = 90,708,818.42/12,895.38
  6. Step 6: Final answer
    x = 7,034.21

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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.