Home / 13,481.52-18,605.64-7,514.40

Finding the Fourth Proportional to 13,481.52, 18,605.64 and 7,514.40

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Solution

The fourth proportional to 13,481.52, 18,605.64 and 7,514.40 is: 10,370.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,481.52 : 18,605.64 = 7,514.40 : x
  2. Step 2: Convert to fraction form
    13,481.52/18,605.64 = 7,514.40/x
  3. Step 3: Cross multiply
    13,481.52x = 18,605.64 × 7,514.40
  4. Step 4: Simplify right side
    13,481.52x = 139,810,221.22
  5. Step 5: Solve for x
    x = 139,810,221.22/13,481.52
  6. Step 6: Final answer
    x = 10,370.51

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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.