Home / 13,511.50-20,253.57-6,481.18

Finding the Fourth Proportional to 13,511.50, 20,253.57 and 6,481.18

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Solution

The fourth proportional to 13,511.50, 20,253.57 and 6,481.18 is: 9,715.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,511.50 : 20,253.57 = 6,481.18 : x
  2. Step 2: Convert to fraction form
    13,511.50/20,253.57 = 6,481.18/x
  3. Step 3: Cross multiply
    13,511.50x = 20,253.57 × 6,481.18
  4. Step 4: Simplify right side
    13,511.50x = 131,267,032.81
  5. Step 5: Solve for x
    x = 131,267,032.81/13,511.50
  6. Step 6: Final answer
    x = 9,715.21

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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.