Home / 13,231.24-19,859.10-5,440.60

Finding the Fourth Proportional to 13,231.24, 19,859.10 and 5,440.60

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Solution

The fourth proportional to 13,231.24, 19,859.10 and 5,440.60 is: 8,165.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,231.24 : 19,859.10 = 5,440.60 : x
  2. Step 2: Convert to fraction form
    13,231.24/19,859.10 = 5,440.60/x
  3. Step 3: Cross multiply
    13,231.24x = 19,859.10 × 5,440.60
  4. Step 4: Simplify right side
    13,231.24x = 108,045,419.46
  5. Step 5: Solve for x
    x = 108,045,419.46/13,231.24
  6. Step 6: Final answer
    x = 8,165.93

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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.