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Finding the Fourth Proportional to 18,289.26, 27,424.08 and 5,805.90

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Solution

The fourth proportional to 18,289.26, 27,424.08 and 5,805.90 is: 8,705.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,289.26 : 27,424.08 = 5,805.90 : x
  2. Step 2: Convert to fraction form
    18,289.26/27,424.08 = 5,805.90/x
  3. Step 3: Cross multiply
    18,289.26x = 27,424.08 × 5,805.90
  4. Step 4: Simplify right side
    18,289.26x = 159,221,466.07
  5. Step 5: Solve for x
    x = 159,221,466.07/18,289.26
  6. Step 6: Final answer
    x = 8,705.74

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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.