Home / 13,507.05-20,258.01-5,721.33

Finding the Fourth Proportional to 13,507.05, 20,258.01 and 5,721.33

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Solution

The fourth proportional to 13,507.05, 20,258.01 and 5,721.33 is: 8,580.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,507.05 : 20,258.01 = 5,721.33 : x
  2. Step 2: Convert to fraction form
    13,507.05/20,258.01 = 5,721.33/x
  3. Step 3: Cross multiply
    13,507.05x = 20,258.01 × 5,721.33
  4. Step 4: Simplify right side
    13,507.05x = 115,902,760.35
  5. Step 5: Solve for x
    x = 115,902,760.35/13,507.05
  6. Step 6: Final answer
    x = 8,580.91

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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.