Home / 15,405.96-21,261.30-11,622.48

Finding the Fourth Proportional to 15,405.96, 21,261.30 and 11,622.48

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Solution

The fourth proportional to 15,405.96, 21,261.30 and 11,622.48 is: 16,039.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,405.96 : 21,261.30 = 11,622.48 : x
  2. Step 2: Convert to fraction form
    15,405.96/21,261.30 = 11,622.48/x
  3. Step 3: Cross multiply
    15,405.96x = 21,261.30 × 11,622.48
  4. Step 4: Simplify right side
    15,405.96x = 247,109,034.02
  5. Step 5: Solve for x
    x = 247,109,034.02/15,405.96
  6. Step 6: Final answer
    x = 16,039.83

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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.