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Finding the Fourth Proportional to 18,614.45, 27,926.25 and 9,258.90

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Solution

The fourth proportional to 18,614.45, 27,926.25 and 9,258.90 is: 13,890.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,614.45 : 27,926.25 = 9,258.90 : x
  2. Step 2: Convert to fraction form
    18,614.45/27,926.25 = 9,258.90/x
  3. Step 3: Cross multiply
    18,614.45x = 27,926.25 × 9,258.90
  4. Step 4: Simplify right side
    18,614.45x = 258,566,356.13
  5. Step 5: Solve for x
    x = 258,566,356.13/18,614.45
  6. Step 6: Final answer
    x = 13,890.63

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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.