Home / 15,825.95-21,837.24-8,751

Finding the Fourth Proportional to 15,825.95, 21,837.24 and 8,751

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Solution

The fourth proportional to 15,825.95, 21,837.24 and 8,751 is: 12,074.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,825.95 : 21,837.24 = 8,751 : x
  2. Step 2: Convert to fraction form
    15,825.95/21,837.24 = 8,751/x
  3. Step 3: Cross multiply
    15,825.95x = 21,837.24 × 8,751
  4. Step 4: Simplify right side
    15,825.95x = 191,097,687.24
  5. Step 5: Solve for x
    x = 191,097,687.24/15,825.95
  6. Step 6: Final answer
    x = 12,074.96

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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.