Home / 13,897.56-19,180.49-8,231.85

Finding the Fourth Proportional to 13,897.56, 19,180.49 and 8,231.85

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Solution

The fourth proportional to 13,897.56, 19,180.49 and 8,231.85 is: 11,361.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,897.56 : 19,180.49 = 8,231.85 : x
  2. Step 2: Convert to fraction form
    13,897.56/19,180.49 = 8,231.85/x
  3. Step 3: Cross multiply
    13,897.56x = 19,180.49 × 8,231.85
  4. Step 4: Simplify right side
    13,897.56x = 157,890,875.45
  5. Step 5: Solve for x
    x = 157,890,875.45/13,897.56
  6. Step 6: Final answer
    x = 11,361.05

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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.