Home / 19,767.14-27,279.79-11,271.86

Finding the Fourth Proportional to 19,767.14, 27,279.79 and 11,271.86

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Solution

The fourth proportional to 19,767.14, 27,279.79 and 11,271.86 is: 15,555.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,767.14 : 27,279.79 = 11,271.86 : x
  2. Step 2: Convert to fraction form
    19,767.14/27,279.79 = 11,271.86/x
  3. Step 3: Cross multiply
    19,767.14x = 27,279.79 × 11,271.86
  4. Step 4: Simplify right side
    19,767.14x = 307,493,911.43
  5. Step 5: Solve for x
    x = 307,493,911.43/19,767.14
  6. Step 6: Final answer
    x = 15,555.81

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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.