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Finding the Fourth Proportional to 18,605.92, 27,905.78 and 6,126.08

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Solution

The fourth proportional to 18,605.92, 27,905.78 and 6,126.08 is: 9,188.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,605.92 : 27,905.78 = 6,126.08 : x
  2. Step 2: Convert to fraction form
    18,605.92/27,905.78 = 6,126.08/x
  3. Step 3: Cross multiply
    18,605.92x = 27,905.78 × 6,126.08
  4. Step 4: Simplify right side
    18,605.92x = 170,953,040.74
  5. Step 5: Solve for x
    x = 170,953,040.74/18,605.92
  6. Step 6: Final answer
    x = 9,188.10

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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.