Home / 12,936.46-19,390.87-7,377.83

Finding the Fourth Proportional to 12,936.46, 19,390.87 and 7,377.83

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Solution

The fourth proportional to 12,936.46, 19,390.87 and 7,377.83 is: 11,058.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,936.46 : 19,390.87 = 7,377.83 : x
  2. Step 2: Convert to fraction form
    12,936.46/19,390.87 = 7,377.83/x
  3. Step 3: Cross multiply
    12,936.46x = 19,390.87 × 7,377.83
  4. Step 4: Simplify right side
    12,936.46x = 143,062,572.44
  5. Step 5: Solve for x
    x = 143,062,572.44/12,936.46
  6. Step 6: Final answer
    x = 11,058.87

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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.