Home / 10,112.93-15,166.96-5,180.03

Finding the Fourth Proportional to 10,112.93, 15,166.96 and 5,180.03

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Solution

The fourth proportional to 10,112.93, 15,166.96 and 5,180.03 is: 7,768.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,112.93 : 15,166.96 = 5,180.03 : x
  2. Step 2: Convert to fraction form
    10,112.93/15,166.96 = 5,180.03/x
  3. Step 3: Cross multiply
    10,112.93x = 15,166.96 × 5,180.03
  4. Step 4: Simplify right side
    10,112.93x = 78,565,219.02
  5. Step 5: Solve for x
    x = 78,565,219.02/10,112.93
  6. Step 6: Final answer
    x = 7,768.79

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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.