Home / 13,904.04-20,861.37-8,361.32

Finding the Fourth Proportional to 13,904.04, 20,861.37 and 8,361.32

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Solution

The fourth proportional to 13,904.04, 20,861.37 and 8,361.32 is: 12,545.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,904.04 : 20,861.37 = 8,361.32 : x
  2. Step 2: Convert to fraction form
    13,904.04/20,861.37 = 8,361.32/x
  3. Step 3: Cross multiply
    13,904.04x = 20,861.37 × 8,361.32
  4. Step 4: Simplify right side
    13,904.04x = 174,428,485.90
  5. Step 5: Solve for x
    x = 174,428,485.90/13,904.04
  6. Step 6: Final answer
    x = 12,545.17

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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.