Home / 13,935.38-19,230.12-8,270.37

Finding the Fourth Proportional to 13,935.38, 19,230.12 and 8,270.37

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Solution

The fourth proportional to 13,935.38, 19,230.12 and 8,270.37 is: 11,412.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,935.38 : 19,230.12 = 8,270.37 : x
  2. Step 2: Convert to fraction form
    13,935.38/19,230.12 = 8,270.37/x
  3. Step 3: Cross multiply
    13,935.38x = 19,230.12 × 8,270.37
  4. Step 4: Simplify right side
    13,935.38x = 159,040,111.39
  5. Step 5: Solve for x
    x = 159,040,111.39/13,935.38
  6. Step 6: Final answer
    x = 11,412.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.