Home / 13,481.20-18,601.84-7,511.52

Finding the Fourth Proportional to 13,481.20, 18,601.84 and 7,511.52

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Solution

The fourth proportional to 13,481.20, 18,601.84 and 7,511.52 is: 10,364.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,481.20 : 18,601.84 = 7,511.52 : x
  2. Step 2: Convert to fraction form
    13,481.20/18,601.84 = 7,511.52/x
  3. Step 3: Cross multiply
    13,481.20x = 18,601.84 × 7,511.52
  4. Step 4: Simplify right side
    13,481.20x = 139,728,093.20
  5. Step 5: Solve for x
    x = 139,728,093.20/13,481.20
  6. Step 6: Final answer
    x = 10,364.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.