Home / 18,580.05-25,644.38-11,864.51

Finding the Fourth Proportional to 18,580.05, 25,644.38 and 11,864.51

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Solution

The fourth proportional to 18,580.05, 25,644.38 and 11,864.51 is: 16,375.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,580.05 : 25,644.38 = 11,864.51 : x
  2. Step 2: Convert to fraction form
    18,580.05/25,644.38 = 11,864.51/x
  3. Step 3: Cross multiply
    18,580.05x = 25,644.38 × 11,864.51
  4. Step 4: Simplify right side
    18,580.05x = 304,258,000.56
  5. Step 5: Solve for x
    x = 304,258,000.56/18,580.05
  6. Step 6: Final answer
    x = 16,375.52

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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.