Home / 19,767.72-27,279.21-11,269.57

Finding the Fourth Proportional to 19,767.72, 27,279.21 and 11,269.57

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Solution

The fourth proportional to 19,767.72, 27,279.21 and 11,269.57 is: 15,551.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,767.72 : 27,279.21 = 11,269.57 : x
  2. Step 2: Convert to fraction form
    19,767.72/27,279.21 = 11,269.57/x
  3. Step 3: Cross multiply
    19,767.72x = 27,279.21 × 11,269.57
  4. Step 4: Simplify right side
    19,767.72x = 307,424,966.64
  5. Step 5: Solve for x
    x = 307,424,966.64/19,767.72
  6. Step 6: Final answer
    x = 15,551.87

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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.