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Finding the Fourth Proportional to 18,550.49, 27,834.87 and 8,688.06

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Solution

The fourth proportional to 18,550.49, 27,834.87 and 8,688.06 is: 13,036.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,550.49 : 27,834.87 = 8,688.06 : x
  2. Step 2: Convert to fraction form
    18,550.49/27,834.87 = 8,688.06/x
  3. Step 3: Cross multiply
    18,550.49x = 27,834.87 × 8,688.06
  4. Step 4: Simplify right side
    18,550.49x = 241,831,020.65
  5. Step 5: Solve for x
    x = 241,831,020.65/18,550.49
  6. Step 6: Final answer
    x = 13,036.37

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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.