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Finding the Fourth Proportional to 18,104.10, 27,156.99 and 6,418.50

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Solution

The fourth proportional to 18,104.10, 27,156.99 and 6,418.50 is: 9,628.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,104.10 : 27,156.99 = 6,418.50 : x
  2. Step 2: Convert to fraction form
    18,104.10/27,156.99 = 6,418.50/x
  3. Step 3: Cross multiply
    18,104.10x = 27,156.99 × 6,418.50
  4. Step 4: Simplify right side
    18,104.10x = 174,307,140.32
  5. Step 5: Solve for x
    x = 174,307,140.32/18,104.10
  6. Step 6: Final answer
    x = 9,628.05

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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.