Home / 18,998.92-26,218.58-10,615.56

Finding the Fourth Proportional to 18,998.92, 26,218.58 and 10,615.56

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Solution

The fourth proportional to 18,998.92, 26,218.58 and 10,615.56 is: 14,649.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,998.92 : 26,218.58 = 10,615.56 : x
  2. Step 2: Convert to fraction form
    18,998.92/26,218.58 = 10,615.56/x
  3. Step 3: Cross multiply
    18,998.92x = 26,218.58 × 10,615.56
  4. Step 4: Simplify right side
    18,998.92x = 278,324,909.10
  5. Step 5: Solve for x
    x = 278,324,909.10/18,998.92
  6. Step 6: Final answer
    x = 14,649.51

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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.