Home / 19,767.85-27,279.38-11,269.70

Finding the Fourth Proportional to 19,767.85, 27,279.38 and 11,269.70

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Solution

The fourth proportional to 19,767.85, 27,279.38 and 11,269.70 is: 15,552.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,767.85 : 27,279.38 = 11,269.70 : x
  2. Step 2: Convert to fraction form
    19,767.85/27,279.38 = 11,269.70/x
  3. Step 3: Cross multiply
    19,767.85x = 27,279.38 × 11,269.70
  4. Step 4: Simplify right side
    19,767.85x = 307,430,422.86
  5. Step 5: Solve for x
    x = 307,430,422.86/19,767.85
  6. Step 6: Final answer
    x = 15,552.04

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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.