Home / 18,164.16-27,246.04-12,805.28

Finding the Fourth Proportional to 18,164.16, 27,246.04 and 12,805.28

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Solution

The fourth proportional to 18,164.16, 27,246.04 and 12,805.28 is: 19,207.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,164.16 : 27,246.04 = 12,805.28 : x
  2. Step 2: Convert to fraction form
    18,164.16/27,246.04 = 12,805.28/x
  3. Step 3: Cross multiply
    18,164.16x = 27,246.04 × 12,805.28
  4. Step 4: Simplify right side
    18,164.16x = 348,893,105.02
  5. Step 5: Solve for x
    x = 348,893,105.02/18,164.16
  6. Step 6: Final answer
    x = 19,207.78

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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.