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Finding the Fourth Proportional to 18,437.89, 27,656.88 and 6,744.73

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Solution

The fourth proportional to 18,437.89, 27,656.88 and 6,744.73 is: 10,117.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,437.89 : 27,656.88 = 6,744.73 : x
  2. Step 2: Convert to fraction form
    18,437.89/27,656.88 = 6,744.73/x
  3. Step 3: Cross multiply
    18,437.89x = 27,656.88 × 6,744.73
  4. Step 4: Simplify right side
    18,437.89x = 186,538,188.24
  5. Step 5: Solve for x
    x = 186,538,188.24/18,437.89
  6. Step 6: Final answer
    x = 10,117.11

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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.