Home / 19,771.11-27,279.41-12,707.19

Finding the Fourth Proportional to 19,771.11, 27,279.41 and 12,707.19

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Solution

The fourth proportional to 19,771.11, 27,279.41 and 12,707.19 is: 17,532.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,771.11 : 27,279.41 = 12,707.19 : x
  2. Step 2: Convert to fraction form
    19,771.11/27,279.41 = 12,707.19/x
  3. Step 3: Cross multiply
    19,771.11x = 27,279.41 × 12,707.19
  4. Step 4: Simplify right side
    19,771.11x = 346,644,582.42
  5. Step 5: Solve for x
    x = 346,644,582.42/19,771.11
  6. Step 6: Final answer
    x = 17,532.88

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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.