Home / 13,166.51-19,749.79-5,272.58

Finding the Fourth Proportional to 13,166.51, 19,749.79 and 5,272.58

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Solution

The fourth proportional to 13,166.51, 19,749.79 and 5,272.58 is: 7,908.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,166.51 : 19,749.79 = 5,272.58 : x
  2. Step 2: Convert to fraction form
    13,166.51/19,749.79 = 5,272.58/x
  3. Step 3: Cross multiply
    13,166.51x = 19,749.79 × 5,272.58
  4. Step 4: Simplify right side
    13,166.51x = 104,132,321.40
  5. Step 5: Solve for x
    x = 104,132,321.40/13,166.51
  6. Step 6: Final answer
    x = 7,908.88

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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.