Home / 12,828.38-19,243.67-4,507.68

Finding the Fourth Proportional to 12,828.38, 19,243.67 and 4,507.68

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Solution

The fourth proportional to 12,828.38, 19,243.67 and 4,507.68 is: 6,761.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,828.38 : 19,243.67 = 4,507.68 : x
  2. Step 2: Convert to fraction form
    12,828.38/19,243.67 = 4,507.68/x
  3. Step 3: Cross multiply
    12,828.38x = 19,243.67 × 4,507.68
  4. Step 4: Simplify right side
    12,828.38x = 86,744,306.39
  5. Step 5: Solve for x
    x = 86,744,306.39/12,828.38
  6. Step 6: Final answer
    x = 6,761.91

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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.