Home / 13,858.23-20,787.45-5,538.96

Finding the Fourth Proportional to 13,858.23, 20,787.45 and 5,538.96

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Solution

The fourth proportional to 13,858.23, 20,787.45 and 5,538.96 is: 8,308.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,858.23 : 20,787.45 = 5,538.96 : x
  2. Step 2: Convert to fraction form
    13,858.23/20,787.45 = 5,538.96/x
  3. Step 3: Cross multiply
    13,858.23x = 20,787.45 × 5,538.96
  4. Step 4: Simplify right side
    13,858.23x = 115,140,854.05
  5. Step 5: Solve for x
    x = 115,140,854.05/13,858.23
  6. Step 6: Final answer
    x = 8,308.48

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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.