Home / 18,579.96-25,644.30-11,132.28

Finding the Fourth Proportional to 18,579.96, 25,644.30 and 11,132.28

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Solution

The fourth proportional to 18,579.96, 25,644.30 and 11,132.28 is: 15,364.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,579.96 : 25,644.30 = 11,132.28 : x
  2. Step 2: Convert to fraction form
    18,579.96/25,644.30 = 11,132.28/x
  3. Step 3: Cross multiply
    18,579.96x = 25,644.30 × 11,132.28
  4. Step 4: Simplify right side
    18,579.96x = 285,479,528.00
  5. Step 5: Solve for x
    x = 285,479,528.00/18,579.96
  6. Step 6: Final answer
    x = 15,364.92

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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.