Home / 12,921.26-19,381.96-4,601.60

Finding the Fourth Proportional to 12,921.26, 19,381.96 and 4,601.60

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Solution

The fourth proportional to 12,921.26, 19,381.96 and 4,601.60 is: 6,902.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,921.26 : 19,381.96 = 4,601.60 : x
  2. Step 2: Convert to fraction form
    12,921.26/19,381.96 = 4,601.60/x
  3. Step 3: Cross multiply
    12,921.26x = 19,381.96 × 4,601.60
  4. Step 4: Simplify right side
    12,921.26x = 89,187,930.23
  5. Step 5: Solve for x
    x = 89,187,930.23/12,921.26
  6. Step 6: Final answer
    x = 6,902.42

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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.