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Finding the Fourth Proportional to 18,495.32, 27,738 and 8,624.96

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Solution

The fourth proportional to 18,495.32, 27,738 and 8,624.96 is: 12,935.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,495.32 : 27,738 = 8,624.96 : x
  2. Step 2: Convert to fraction form
    18,495.32/27,738 = 8,624.96/x
  3. Step 3: Cross multiply
    18,495.32x = 27,738 × 8,624.96
  4. Step 4: Simplify right side
    18,495.32x = 239,239,140.48
  5. Step 5: Solve for x
    x = 239,239,140.48/18,495.32
  6. Step 6: Final answer
    x = 12,935.12

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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.