Home / 20,551.13-30,826.50-6,511.12

Finding the Fourth Proportional to 20,551.13, 30,826.50 and 6,511.12

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Solution

The fourth proportional to 20,551.13, 30,826.50 and 6,511.12 is: 9,766.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,551.13 : 30,826.50 = 6,511.12 : x
  2. Step 2: Convert to fraction form
    20,551.13/30,826.50 = 6,511.12/x
  3. Step 3: Cross multiply
    20,551.13x = 30,826.50 × 6,511.12
  4. Step 4: Simplify right side
    20,551.13x = 200,715,040.68
  5. Step 5: Solve for x
    x = 200,715,040.68/20,551.13
  6. Step 6: Final answer
    x = 9,766.62

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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.