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Finding the Fourth Proportional to 18,258.63, 27,349.62 and 11,591.70

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Solution

The fourth proportional to 18,258.63, 27,349.62 and 11,591.70 is: 17,363.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,258.63 : 27,349.62 = 11,591.70 : x
  2. Step 2: Convert to fraction form
    18,258.63/27,349.62 = 11,591.70/x
  3. Step 3: Cross multiply
    18,258.63x = 27,349.62 × 11,591.70
  4. Step 4: Simplify right side
    18,258.63x = 317,028,590.15
  5. Step 5: Solve for x
    x = 317,028,590.15/18,258.63
  6. Step 6: Final answer
    x = 17,363.22

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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.