Home / 7,009.26-10,513.75-1,815

Finding the Fourth Proportional to 7,009.26, 10,513.75 and 1,815

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Solution

The fourth proportional to 7,009.26, 10,513.75 and 1,815 is: 2,722.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,009.26 : 10,513.75 = 1,815 : x
  2. Step 2: Convert to fraction form
    7,009.26/10,513.75 = 1,815/x
  3. Step 3: Cross multiply
    7,009.26x = 10,513.75 × 1,815
  4. Step 4: Simplify right side
    7,009.26x = 19,082,456.25
  5. Step 5: Solve for x
    x = 19,082,456.25/7,009.26
  6. Step 6: Final answer
    x = 2,722.46

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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.