Home / 13,849.05-20,780.49-6,454.08

Finding the Fourth Proportional to 13,849.05, 20,780.49 and 6,454.08

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Solution

The fourth proportional to 13,849.05, 20,780.49 and 6,454.08 is: 9,684.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,849.05 : 20,780.49 = 6,454.08 : x
  2. Step 2: Convert to fraction form
    13,849.05/20,780.49 = 6,454.08/x
  3. Step 3: Cross multiply
    13,849.05x = 20,780.49 × 6,454.08
  4. Step 4: Simplify right side
    13,849.05x = 134,118,944.90
  5. Step 5: Solve for x
    x = 134,118,944.90/13,849.05
  6. Step 6: Final answer
    x = 9,684.34

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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.