Home / 19,769.57-27,279.32-11,810.11

Finding the Fourth Proportional to 19,769.57, 27,279.32 and 11,810.11

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Solution

The fourth proportional to 19,769.57, 27,279.32 and 11,810.11 is: 16,296.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,769.57 : 27,279.32 = 11,810.11 : x
  2. Step 2: Convert to fraction form
    19,769.57/27,279.32 = 11,810.11/x
  3. Step 3: Cross multiply
    19,769.57x = 27,279.32 × 11,810.11
  4. Step 4: Simplify right side
    19,769.57x = 322,171,760.26
  5. Step 5: Solve for x
    x = 322,171,760.26/19,769.57
  6. Step 6: Final answer
    x = 16,296.34

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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.