Home / 13,101.24-19,631.70-7,825.80

Finding the Fourth Proportional to 13,101.24, 19,631.70 and 7,825.80

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Solution

The fourth proportional to 13,101.24, 19,631.70 and 7,825.80 is: 11,726.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,101.24 : 19,631.70 = 7,825.80 : x
  2. Step 2: Convert to fraction form
    13,101.24/19,631.70 = 7,825.80/x
  3. Step 3: Cross multiply
    13,101.24x = 19,631.70 × 7,825.80
  4. Step 4: Simplify right side
    13,101.24x = 153,633,757.86
  5. Step 5: Solve for x
    x = 153,633,757.86/13,101.24
  6. Step 6: Final answer
    x = 11,726.66

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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.