Home / 13,988.84-20,954.90-6,481.82

Finding the Fourth Proportional to 13,988.84, 20,954.90 and 6,481.82

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Solution

The fourth proportional to 13,988.84, 20,954.90 and 6,481.82 is: 9,709.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,988.84 : 20,954.90 = 6,481.82 : x
  2. Step 2: Convert to fraction form
    13,988.84/20,954.90 = 6,481.82/x
  3. Step 3: Cross multiply
    13,988.84x = 20,954.90 × 6,481.82
  4. Step 4: Simplify right side
    13,988.84x = 135,825,958.51
  5. Step 5: Solve for x
    x = 135,825,958.51/13,988.84
  6. Step 6: Final answer
    x = 9,709.60

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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.