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Finding the Fourth Proportional to 18,269.30, 27,411.15 and 7,174.10

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Solution

The fourth proportional to 18,269.30, 27,411.15 and 7,174.10 is: 10,763.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,269.30 : 27,411.15 = 7,174.10 : x
  2. Step 2: Convert to fraction form
    18,269.30/27,411.15 = 7,174.10/x
  3. Step 3: Cross multiply
    18,269.30x = 27,411.15 × 7,174.10
  4. Step 4: Simplify right side
    18,269.30x = 196,650,331.22
  5. Step 5: Solve for x
    x = 196,650,331.22/18,269.30
  6. Step 6: Final answer
    x = 10,763.98

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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.