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Finding the Fourth Proportional to 18,437.63, 27,606.04 and 12,896.51

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Solution

The fourth proportional to 18,437.63, 27,606.04 and 12,896.51 is: 19,309.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,437.63 : 27,606.04 = 12,896.51 : x
  2. Step 2: Convert to fraction form
    18,437.63/27,606.04 = 12,896.51/x
  3. Step 3: Cross multiply
    18,437.63x = 27,606.04 × 12,896.51
  4. Step 4: Simplify right side
    18,437.63x = 356,021,400.65
  5. Step 5: Solve for x
    x = 356,021,400.65/18,437.63
  6. Step 6: Final answer
    x = 19,309.50

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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.