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Finding the Fourth Proportional to 18,275.34, 27,412.92 and 4,424.34

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Solution

The fourth proportional to 18,275.34, 27,412.92 and 4,424.34 is: 6,636.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,275.34 : 27,412.92 = 4,424.34 : x
  2. Step 2: Convert to fraction form
    18,275.34/27,412.92 = 4,424.34/x
  3. Step 3: Cross multiply
    18,275.34x = 27,412.92 × 4,424.34
  4. Step 4: Simplify right side
    18,275.34x = 121,284,078.47
  5. Step 5: Solve for x
    x = 121,284,078.47/18,275.34
  6. Step 6: Final answer
    x = 6,636.49

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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.