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Finding the Fourth Proportional to 18,362.14, 27,505.95 and 8,487.70

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Solution

The fourth proportional to 18,362.14, 27,505.95 and 8,487.70 is: 12,714.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,362.14 : 27,505.95 = 8,487.70 : x
  2. Step 2: Convert to fraction form
    18,362.14/27,505.95 = 8,487.70/x
  3. Step 3: Cross multiply
    18,362.14x = 27,505.95 × 8,487.70
  4. Step 4: Simplify right side
    18,362.14x = 233,462,251.82
  5. Step 5: Solve for x
    x = 233,462,251.82/18,362.14
  6. Step 6: Final answer
    x = 12,714.33

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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.