Home / 13,261.10-19,887.21-5,361.58

Finding the Fourth Proportional to 13,261.10, 19,887.21 and 5,361.58

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Solution

The fourth proportional to 13,261.10, 19,887.21 and 5,361.58 is: 8,040.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,261.10 : 19,887.21 = 5,361.58 : x
  2. Step 2: Convert to fraction form
    13,261.10/19,887.21 = 5,361.58/x
  3. Step 3: Cross multiply
    13,261.10x = 19,887.21 × 5,361.58
  4. Step 4: Simplify right side
    13,261.10x = 106,626,867.39
  5. Step 5: Solve for x
    x = 106,626,867.39/13,261.10
  6. Step 6: Final answer
    x = 8,040.57

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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.