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Finding the Fourth Proportional to 18,004.15, 27,018.07 and 6,317.06

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Solution

The fourth proportional to 18,004.15, 27,018.07 and 6,317.06 is: 9,479.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,004.15 : 27,018.07 = 6,317.06 : x
  2. Step 2: Convert to fraction form
    18,004.15/27,018.07 = 6,317.06/x
  3. Step 3: Cross multiply
    18,004.15x = 27,018.07 × 6,317.06
  4. Step 4: Simplify right side
    18,004.15x = 170,674,821.03
  5. Step 5: Solve for x
    x = 170,674,821.03/18,004.15
  6. Step 6: Final answer
    x = 9,479.75

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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.