Home / 15,539.58-21,449.31-11,076.28

Finding the Fourth Proportional to 15,539.58, 21,449.31 and 11,076.28

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Solution

The fourth proportional to 15,539.58, 21,449.31 and 11,076.28 is: 15,288.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,539.58 : 21,449.31 = 11,076.28 : x
  2. Step 2: Convert to fraction form
    15,539.58/21,449.31 = 11,076.28/x
  3. Step 3: Cross multiply
    15,539.58x = 21,449.31 × 11,076.28
  4. Step 4: Simplify right side
    15,539.58x = 237,578,563.37
  5. Step 5: Solve for x
    x = 237,578,563.37/15,539.58
  6. Step 6: Final answer
    x = 15,288.61

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1.5x scale

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.