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Finding the Fourth Proportional to 18,126.32, 27,189.72 and 7,033.64

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Solution

The fourth proportional to 18,126.32, 27,189.72 and 7,033.64 is: 10,550.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,126.32 : 27,189.72 = 7,033.64 : x
  2. Step 2: Convert to fraction form
    18,126.32/27,189.72 = 7,033.64/x
  3. Step 3: Cross multiply
    18,126.32x = 27,189.72 × 7,033.64
  4. Step 4: Simplify right side
    18,126.32x = 191,242,702.18
  5. Step 5: Solve for x
    x = 191,242,702.18/18,126.32
  6. Step 6: Final answer
    x = 10,550.55

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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.