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Finding the Fourth Proportional to 18,436.20, 27,657.08 and 6,746.64

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Solution

The fourth proportional to 18,436.20, 27,657.08 and 6,746.64 is: 10,120.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,436.20 : 27,657.08 = 6,746.64 : x
  2. Step 2: Convert to fraction form
    18,436.20/27,657.08 = 6,746.64/x
  3. Step 3: Cross multiply
    18,436.20x = 27,657.08 × 6,746.64
  4. Step 4: Simplify right side
    18,436.20x = 186,592,362.21
  5. Step 5: Solve for x
    x = 186,592,362.21/18,436.20
  6. Step 6: Final answer
    x = 10,120.98

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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.