Home / 13,720.84-20,584.68-6,330.45

Finding the Fourth Proportional to 13,720.84, 20,584.68 and 6,330.45

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Solution

The fourth proportional to 13,720.84, 20,584.68 and 6,330.45 is: 9,497.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,720.84 : 20,584.68 = 6,330.45 : x
  2. Step 2: Convert to fraction form
    13,720.84/20,584.68 = 6,330.45/x
  3. Step 3: Cross multiply
    13,720.84x = 20,584.68 × 6,330.45
  4. Step 4: Simplify right side
    13,720.84x = 130,310,376.57
  5. Step 5: Solve for x
    x = 130,310,376.57/13,720.84
  6. Step 6: Final answer
    x = 9,497.26

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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.