Home / 17,603.10-26,400.48-5,119.86

Finding the Fourth Proportional to 17,603.10, 26,400.48 and 5,119.86

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Solution

The fourth proportional to 17,603.10, 26,400.48 and 5,119.86 is: 7,678.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,603.10 : 26,400.48 = 5,119.86 : x
  2. Step 2: Convert to fraction form
    17,603.10/26,400.48 = 5,119.86/x
  3. Step 3: Cross multiply
    17,603.10x = 26,400.48 × 5,119.86
  4. Step 4: Simplify right side
    17,603.10x = 135,166,761.53
  5. Step 5: Solve for x
    x = 135,166,761.53/17,603.10
  6. Step 6: Final answer
    x = 7,678.58

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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.