Home / 13,123.62-19,673.28-4,356.54

Finding the Fourth Proportional to 13,123.62, 19,673.28 and 4,356.54

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Solution

The fourth proportional to 13,123.62, 19,673.28 and 4,356.54 is: 6,530.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,123.62 : 19,673.28 = 4,356.54 : x
  2. Step 2: Convert to fraction form
    13,123.62/19,673.28 = 4,356.54/x
  3. Step 3: Cross multiply
    13,123.62x = 19,673.28 × 4,356.54
  4. Step 4: Simplify right side
    13,123.62x = 85,707,431.25
  5. Step 5: Solve for x
    x = 85,707,431.25/13,123.62
  6. Step 6: Final answer
    x = 6,530.78

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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.