Home / 19,767.85-27,275.87-11,269.60

Finding the Fourth Proportional to 19,767.85, 27,275.87 and 11,269.60

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Solution

The fourth proportional to 19,767.85, 27,275.87 and 11,269.60 is: 15,549.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,767.85 : 27,275.87 = 11,269.60 : x
  2. Step 2: Convert to fraction form
    19,767.85/27,275.87 = 11,269.60/x
  3. Step 3: Cross multiply
    19,767.85x = 27,275.87 × 11,269.60
  4. Step 4: Simplify right side
    19,767.85x = 307,387,951.82
  5. Step 5: Solve for x
    x = 307,387,951.82/19,767.85
  6. Step 6: Final answer
    x = 15,549.90

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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.