Home / 16,921.52-25,389.54-6,540.56

Finding the Fourth Proportional to 16,921.52, 25,389.54 and 6,540.56

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Solution

The fourth proportional to 16,921.52, 25,389.54 and 6,540.56 is: 9,813.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,921.52 : 25,389.54 = 6,540.56 : x
  2. Step 2: Convert to fraction form
    16,921.52/25,389.54 = 6,540.56/x
  3. Step 3: Cross multiply
    16,921.52x = 25,389.54 × 6,540.56
  4. Step 4: Simplify right side
    16,921.52x = 166,061,809.74
  5. Step 5: Solve for x
    x = 166,061,809.74/16,921.52
  6. Step 6: Final answer
    x = 9,813.65

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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.