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Finding the Fourth Proportional to 18,273, 27,416.60 and 7,177.72

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Solution

The fourth proportional to 18,273, 27,416.60 and 7,177.72 is: 10,769.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,273 : 27,416.60 = 7,177.72 : x
  2. Step 2: Convert to fraction form
    18,273/27,416.60 = 7,177.72/x
  3. Step 3: Cross multiply
    18,273x = 27,416.60 × 7,177.72
  4. Step 4: Simplify right side
    18,273x = 196,788,678.15
  5. Step 5: Solve for x
    x = 196,788,678.15/18,273
  6. Step 6: Final answer
    x = 10,769.37

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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.