Home / 13,761.36-20,637.59-5,439.83

Finding the Fourth Proportional to 13,761.36, 20,637.59 and 5,439.83

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Solution

The fourth proportional to 13,761.36, 20,637.59 and 5,439.83 is: 8,157.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,761.36 : 20,637.59 = 5,439.83 : x
  2. Step 2: Convert to fraction form
    13,761.36/20,637.59 = 5,439.83/x
  3. Step 3: Cross multiply
    13,761.36x = 20,637.59 × 5,439.83
  4. Step 4: Simplify right side
    13,761.36x = 112,264,850.82
  5. Step 5: Solve for x
    x = 112,264,850.82/13,761.36
  6. Step 6: Final answer
    x = 8,157.98

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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.