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Finding the Fourth Proportional to 18,356.72, 27,467.04 and 10,965.20

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Solution

The fourth proportional to 18,356.72, 27,467.04 and 10,965.20 is: 16,407.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,356.72 : 27,467.04 = 10,965.20 : x
  2. Step 2: Convert to fraction form
    18,356.72/27,467.04 = 10,965.20/x
  3. Step 3: Cross multiply
    18,356.72x = 27,467.04 × 10,965.20
  4. Step 4: Simplify right side
    18,356.72x = 301,181,587.01
  5. Step 5: Solve for x
    x = 301,181,587.01/18,356.72
  6. Step 6: Final answer
    x = 16,407.16

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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.