Home / 13,405.97-20,102.58-5,507.26

Finding the Fourth Proportional to 13,405.97, 20,102.58 and 5,507.26

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Solution

The fourth proportional to 13,405.97, 20,102.58 and 5,507.26 is: 8,258.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,405.97 : 20,102.58 = 5,507.26 : x
  2. Step 2: Convert to fraction form
    13,405.97/20,102.58 = 5,507.26/x
  3. Step 3: Cross multiply
    13,405.97x = 20,102.58 × 5,507.26
  4. Step 4: Simplify right side
    13,405.97x = 110,710,084.47
  5. Step 5: Solve for x
    x = 110,710,084.47/13,405.97
  6. Step 6: Final answer
    x = 8,258.27

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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.