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Finding the Fourth Proportional to 18,606.76, 27,900.06 and 6,123.88

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Solution

The fourth proportional to 18,606.76, 27,900.06 and 6,123.88 is: 9,182.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,606.76 : 27,900.06 = 6,123.88 : x
  2. Step 2: Convert to fraction form
    18,606.76/27,900.06 = 6,123.88/x
  3. Step 3: Cross multiply
    18,606.76x = 27,900.06 × 6,123.88
  4. Step 4: Simplify right side
    18,606.76x = 170,856,619.43
  5. Step 5: Solve for x
    x = 170,856,619.43/18,606.76
  6. Step 6: Final answer
    x = 9,182.50

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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.