Home / 13,877.52-20,824.48-5,118.59

Finding the Fourth Proportional to 13,877.52, 20,824.48 and 5,118.59

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Solution

The fourth proportional to 13,877.52, 20,824.48 and 5,118.59 is: 7,680.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,877.52 : 20,824.48 = 5,118.59 : x
  2. Step 2: Convert to fraction form
    13,877.52/20,824.48 = 5,118.59/x
  3. Step 3: Cross multiply
    13,877.52x = 20,824.48 × 5,118.59
  4. Step 4: Simplify right side
    13,877.52x = 106,591,877.36
  5. Step 5: Solve for x
    x = 106,591,877.36/13,877.52
  6. Step 6: Final answer
    x = 7,680.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.