Home / 11,820.29-17,708.29-10,603.13

Finding the Fourth Proportional to 11,820.29, 17,708.29 and 10,603.13

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Solution

The fourth proportional to 11,820.29, 17,708.29 and 10,603.13 is: 15,884.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,820.29 : 17,708.29 = 10,603.13 : x
  2. Step 2: Convert to fraction form
    11,820.29/17,708.29 = 10,603.13/x
  3. Step 3: Cross multiply
    11,820.29x = 17,708.29 × 10,603.13
  4. Step 4: Simplify right side
    11,820.29x = 187,763,185.90
  5. Step 5: Solve for x
    x = 187,763,185.90/11,820.29
  6. Step 6: Final answer
    x = 15,884.83

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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.