Home / 13,784.24-20,666.04-6,863.60

Finding the Fourth Proportional to 13,784.24, 20,666.04 and 6,863.60

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Solution

The fourth proportional to 13,784.24, 20,666.04 and 6,863.60 is: 10,290.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,784.24 : 20,666.04 = 6,863.60 : x
  2. Step 2: Convert to fraction form
    13,784.24/20,666.04 = 6,863.60/x
  3. Step 3: Cross multiply
    13,784.24x = 20,666.04 × 6,863.60
  4. Step 4: Simplify right side
    13,784.24x = 141,843,432.14
  5. Step 5: Solve for x
    x = 141,843,432.14/13,784.24
  6. Step 6: Final answer
    x = 10,290.26

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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.