Home / 13,877.50-19,160.20-8,214.06

Finding the Fourth Proportional to 13,877.50, 19,160.20 and 8,214.06

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Solution

The fourth proportional to 13,877.50, 19,160.20 and 8,214.06 is: 11,340.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,877.50 : 19,160.20 = 8,214.06 : x
  2. Step 2: Convert to fraction form
    13,877.50/19,160.20 = 8,214.06/x
  3. Step 3: Cross multiply
    13,877.50x = 19,160.20 × 8,214.06
  4. Step 4: Simplify right side
    13,877.50x = 157,383,032.41
  5. Step 5: Solve for x
    x = 157,383,032.41/13,877.50
  6. Step 6: Final answer
    x = 11,340.88

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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.