Home / 13,877.83-20,805.81-5,107.96

Finding the Fourth Proportional to 13,877.83, 20,805.81 and 5,107.96

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Solution

The fourth proportional to 13,877.83, 20,805.81 and 5,107.96 is: 7,657.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,877.83 : 20,805.81 = 5,107.96 : x
  2. Step 2: Convert to fraction form
    13,877.83/20,805.81 = 5,107.96/x
  3. Step 3: Cross multiply
    13,877.83x = 20,805.81 × 5,107.96
  4. Step 4: Simplify right side
    13,877.83x = 106,275,245.25
  5. Step 5: Solve for x
    x = 106,275,245.25/13,877.83
  6. Step 6: Final answer
    x = 7,657.92

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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.