Home / 13,010.51-19,516.58-5,218.31

Finding the Fourth Proportional to 13,010.51, 19,516.58 and 5,218.31

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Solution

The fourth proportional to 13,010.51, 19,516.58 and 5,218.31 is: 7,827.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,010.51 : 19,516.58 = 5,218.31 : x
  2. Step 2: Convert to fraction form
    13,010.51/19,516.58 = 5,218.31/x
  3. Step 3: Cross multiply
    13,010.51x = 19,516.58 × 5,218.31
  4. Step 4: Simplify right side
    13,010.51x = 101,843,564.58
  5. Step 5: Solve for x
    x = 101,843,564.58/13,010.51
  6. Step 6: Final answer
    x = 7,827.79

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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.