Home / 18,421.68-27,636.12-6,733.36

Finding the Fourth Proportional to 18,421.68, 27,636.12 and 6,733.36

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Solution

The fourth proportional to 18,421.68, 27,636.12 and 6,733.36 is: 10,101.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,421.68 : 27,636.12 = 6,733.36 : x
  2. Step 2: Convert to fraction form
    18,421.68/27,636.12 = 6,733.36/x
  3. Step 3: Cross multiply
    18,421.68x = 27,636.12 × 6,733.36
  4. Step 4: Simplify right side
    18,421.68x = 186,083,944.96
  5. Step 5: Solve for x
    x = 186,083,944.96/18,421.68
  6. Step 6: Final answer
    x = 10,101.36

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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.