Home / 13,026.62-19,540.04-7,821.56

Finding the Fourth Proportional to 13,026.62, 19,540.04 and 7,821.56

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Solution

The fourth proportional to 13,026.62, 19,540.04 and 7,821.56 is: 11,732.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,026.62 : 19,540.04 = 7,821.56 : x
  2. Step 2: Convert to fraction form
    13,026.62/19,540.04 = 7,821.56/x
  3. Step 3: Cross multiply
    13,026.62x = 19,540.04 × 7,821.56
  4. Step 4: Simplify right side
    13,026.62x = 152,833,605.00
  5. Step 5: Solve for x
    x = 152,833,605.00/13,026.62
  6. Step 6: Final answer
    x = 11,732.40

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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.