Home / 13,461.36-20,196.36-6,540.72

Finding the Fourth Proportional to 13,461.36, 20,196.36 and 6,540.72

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Solution

The fourth proportional to 13,461.36, 20,196.36 and 6,540.72 is: 9,813.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,461.36 : 20,196.36 = 6,540.72 : x
  2. Step 2: Convert to fraction form
    13,461.36/20,196.36 = 6,540.72/x
  3. Step 3: Cross multiply
    13,461.36x = 20,196.36 × 6,540.72
  4. Step 4: Simplify right side
    13,461.36x = 132,098,735.78
  5. Step 5: Solve for x
    x = 132,098,735.78/13,461.36
  6. Step 6: Final answer
    x = 9,813.18

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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.