Home / 13,651.08-18,837.68-7,682.39

Finding the Fourth Proportional to 13,651.08, 18,837.68 and 7,682.39

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Solution

The fourth proportional to 13,651.08, 18,837.68 and 7,682.39 is: 10,601.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,651.08 : 18,837.68 = 7,682.39 : x
  2. Step 2: Convert to fraction form
    13,651.08/18,837.68 = 7,682.39/x
  3. Step 3: Cross multiply
    13,651.08x = 18,837.68 × 7,682.39
  4. Step 4: Simplify right side
    13,651.08x = 144,718,404.46
  5. Step 5: Solve for x
    x = 144,718,404.46/13,651.08
  6. Step 6: Final answer
    x = 10,601.24

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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.