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Finding the Fourth Proportional to 18,613.08, 27,919.62 and 6,923.16

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Solution

The fourth proportional to 18,613.08, 27,919.62 and 6,923.16 is: 10,384.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,613.08 : 27,919.62 = 6,923.16 : x
  2. Step 2: Convert to fraction form
    18,613.08/27,919.62 = 6,923.16/x
  3. Step 3: Cross multiply
    18,613.08x = 27,919.62 × 6,923.16
  4. Step 4: Simplify right side
    18,613.08x = 193,291,996.40
  5. Step 5: Solve for x
    x = 193,291,996.40/18,613.08
  6. Step 6: Final answer
    x = 10,384.74

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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.