Home / 12,659.63-18,976.48-5,268.38

Finding the Fourth Proportional to 12,659.63, 18,976.48 and 5,268.38

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Solution

The fourth proportional to 12,659.63, 18,976.48 and 5,268.38 is: 7,897.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,659.63 : 18,976.48 = 5,268.38 : x
  2. Step 2: Convert to fraction form
    12,659.63/18,976.48 = 5,268.38/x
  3. Step 3: Cross multiply
    12,659.63x = 18,976.48 × 5,268.38
  4. Step 4: Simplify right side
    12,659.63x = 99,975,199.65
  5. Step 5: Solve for x
    x = 99,975,199.65/12,659.63
  6. Step 6: Final answer
    x = 7,897.17

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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.