Home / 19,659.70-27,126.15-11,700.37

Finding the Fourth Proportional to 19,659.70, 27,126.15 and 11,700.37

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Solution

The fourth proportional to 19,659.70, 27,126.15 and 11,700.37 is: 16,143.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,659.70 : 27,126.15 = 11,700.37 : x
  2. Step 2: Convert to fraction form
    19,659.70/27,126.15 = 11,700.37/x
  3. Step 3: Cross multiply
    19,659.70x = 27,126.15 × 11,700.37
  4. Step 4: Simplify right side
    19,659.70x = 317,385,991.68
  5. Step 5: Solve for x
    x = 317,385,991.68/19,659.70
  6. Step 6: Final answer
    x = 16,143.99

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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.