Home / 13,664.08-18,855.48-8,074

Finding the Fourth Proportional to 13,664.08, 18,855.48 and 8,074

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Solution

The fourth proportional to 13,664.08, 18,855.48 and 8,074 is: 11,141.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,664.08 : 18,855.48 = 8,074 : x
  2. Step 2: Convert to fraction form
    13,664.08/18,855.48 = 8,074/x
  3. Step 3: Cross multiply
    13,664.08x = 18,855.48 × 8,074
  4. Step 4: Simplify right side
    13,664.08x = 152,239,145.52
  5. Step 5: Solve for x
    x = 152,239,145.52/13,664.08
  6. Step 6: Final answer
    x = 11,141.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.