Home / 18,761.44-25,889.70-10,261.86

Finding the Fourth Proportional to 18,761.44, 25,889.70 and 10,261.86

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Solution

The fourth proportional to 18,761.44, 25,889.70 and 10,261.86 is: 14,160.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,761.44 : 25,889.70 = 10,261.86 : x
  2. Step 2: Convert to fraction form
    18,761.44/25,889.70 = 10,261.86/x
  3. Step 3: Cross multiply
    18,761.44x = 25,889.70 × 10,261.86
  4. Step 4: Simplify right side
    18,761.44x = 265,676,476.84
  5. Step 5: Solve for x
    x = 265,676,476.84/18,761.44
  6. Step 6: Final answer
    x = 14,160.77

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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.