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Finding the Fourth Proportional to 18,175.73, 27,279.95 and 7,653.51

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Solution

The fourth proportional to 18,175.73, 27,279.95 and 7,653.51 is: 11,487.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,175.73 : 27,279.95 = 7,653.51 : x
  2. Step 2: Convert to fraction form
    18,175.73/27,279.95 = 7,653.51/x
  3. Step 3: Cross multiply
    18,175.73x = 27,279.95 × 7,653.51
  4. Step 4: Simplify right side
    18,175.73x = 208,787,331.86
  5. Step 5: Solve for x
    x = 208,787,331.86/18,175.73
  6. Step 6: Final answer
    x = 11,487.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.