Home / 13,719.51-18,933.30-7,751.06

Finding the Fourth Proportional to 13,719.51, 18,933.30 and 7,751.06

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Solution

The fourth proportional to 13,719.51, 18,933.30 and 7,751.06 is: 10,696.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,719.51 : 18,933.30 = 7,751.06 : x
  2. Step 2: Convert to fraction form
    13,719.51/18,933.30 = 7,751.06/x
  3. Step 3: Cross multiply
    13,719.51x = 18,933.30 × 7,751.06
  4. Step 4: Simplify right side
    13,719.51x = 146,753,144.30
  5. Step 5: Solve for x
    x = 146,753,144.30/13,719.51
  6. Step 6: Final answer
    x = 10,696.68

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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.