Home / 15,788.61-21,778.82-11,534.46

Finding the Fourth Proportional to 15,788.61, 21,778.82 and 11,534.46

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Solution

The fourth proportional to 15,788.61, 21,778.82 and 11,534.46 is: 15,910.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,788.61 : 21,778.82 = 11,534.46 : x
  2. Step 2: Convert to fraction form
    15,788.61/21,778.82 = 11,534.46/x
  3. Step 3: Cross multiply
    15,788.61x = 21,778.82 × 11,534.46
  4. Step 4: Simplify right side
    15,788.61x = 251,206,870.46
  5. Step 5: Solve for x
    x = 251,206,870.46/15,788.61
  6. Step 6: Final answer
    x = 15,910.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.