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Finding the Fourth Proportional to 18,188.65, 27,288.24 and 6,502.78

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Solution

The fourth proportional to 18,188.65, 27,288.24 and 6,502.78 is: 9,756.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,188.65 : 27,288.24 = 6,502.78 : x
  2. Step 2: Convert to fraction form
    18,188.65/27,288.24 = 6,502.78/x
  3. Step 3: Cross multiply
    18,188.65x = 27,288.24 × 6,502.78
  4. Step 4: Simplify right side
    18,188.65x = 177,449,421.31
  5. Step 5: Solve for x
    x = 177,449,421.31/18,188.65
  6. Step 6: Final answer
    x = 9,756.05

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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.