Home / 15,292.67-21,104.09-8,577.90

Finding the Fourth Proportional to 15,292.67, 21,104.09 and 8,577.90

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Solution

The fourth proportional to 15,292.67, 21,104.09 and 8,577.90 is: 11,837.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,292.67 : 21,104.09 = 8,577.90 : x
  2. Step 2: Convert to fraction form
    15,292.67/21,104.09 = 8,577.90/x
  3. Step 3: Cross multiply
    15,292.67x = 21,104.09 × 8,577.90
  4. Step 4: Simplify right side
    15,292.67x = 181,028,811.14
  5. Step 5: Solve for x
    x = 181,028,811.14/15,292.67
  6. Step 6: Final answer
    x = 11,837.62

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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.