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Finding the Fourth Proportional to 18,004.65, 27,018.82 and 6,317.57

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Solution

The fourth proportional to 18,004.65, 27,018.82 and 6,317.57 is: 9,480.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,004.65 : 27,018.82 = 6,317.57 : x
  2. Step 2: Convert to fraction form
    18,004.65/27,018.82 = 6,317.57/x
  3. Step 3: Cross multiply
    18,004.65x = 27,018.82 × 6,317.57
  4. Step 4: Simplify right side
    18,004.65x = 170,693,151.57
  5. Step 5: Solve for x
    x = 170,693,151.57/18,004.65
  6. Step 6: Final answer
    x = 9,480.50

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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.