Home / 13,581.27-20,371.70-6,556.55

Finding the Fourth Proportional to 13,581.27, 20,371.70 and 6,556.55

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Solution

The fourth proportional to 13,581.27, 20,371.70 and 6,556.55 is: 9,834.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,581.27 : 20,371.70 = 6,556.55 : x
  2. Step 2: Convert to fraction form
    13,581.27/20,371.70 = 6,556.55/x
  3. Step 3: Cross multiply
    13,581.27x = 20,371.70 × 6,556.55
  4. Step 4: Simplify right side
    13,581.27x = 133,567,984.17
  5. Step 5: Solve for x
    x = 133,567,984.17/13,581.27
  6. Step 6: Final answer
    x = 9,834.72

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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.