Home / 13,511.88-20,262.60-6,487.43

Finding the Fourth Proportional to 13,511.88, 20,262.60 and 6,487.43

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Solution

The fourth proportional to 13,511.88, 20,262.60 and 6,487.43 is: 9,728.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,511.88 : 20,262.60 = 6,487.43 : x
  2. Step 2: Convert to fraction form
    13,511.88/20,262.60 = 6,487.43/x
  3. Step 3: Cross multiply
    13,511.88x = 20,262.60 × 6,487.43
  4. Step 4: Simplify right side
    13,511.88x = 131,452,097.81
  5. Step 5: Solve for x
    x = 131,452,097.81/13,511.88
  6. Step 6: Final answer
    x = 9,728.63

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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.