Home / 13,129.70-19,694.81-7,323.26

Finding the Fourth Proportional to 13,129.70, 19,694.81 and 7,323.26

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Solution

The fourth proportional to 13,129.70, 19,694.81 and 7,323.26 is: 10,985.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,129.70 : 19,694.81 = 7,323.26 : x
  2. Step 2: Convert to fraction form
    13,129.70/19,694.81 = 7,323.26/x
  3. Step 3: Cross multiply
    13,129.70x = 19,694.81 × 7,323.26
  4. Step 4: Simplify right side
    13,129.70x = 144,230,134.11
  5. Step 5: Solve for x
    x = 144,230,134.11/13,129.70
  6. Step 6: Final answer
    x = 10,985.03

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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.