Home / 19,660.20-27,126.84-11,700.87

Finding the Fourth Proportional to 19,660.20, 27,126.84 and 11,700.87

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Solution

The fourth proportional to 19,660.20, 27,126.84 and 11,700.87 is: 16,144.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,660.20 : 27,126.84 = 11,700.87 : x
  2. Step 2: Convert to fraction form
    19,660.20/27,126.84 = 11,700.87/x
  3. Step 3: Cross multiply
    19,660.20x = 27,126.84 × 11,700.87
  4. Step 4: Simplify right side
    19,660.20x = 317,407,628.35
  5. Step 5: Solve for x
    x = 317,407,628.35/19,660.20
  6. Step 6: Final answer
    x = 16,144.68

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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.