Home / 11,820.93-17,742.33-5,981.64

Finding the Fourth Proportional to 11,820.93, 17,742.33 and 5,981.64

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Solution

The fourth proportional to 11,820.93, 17,742.33 and 5,981.64 is: 8,977.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,820.93 : 17,742.33 = 5,981.64 : x
  2. Step 2: Convert to fraction form
    11,820.93/17,742.33 = 5,981.64/x
  3. Step 3: Cross multiply
    11,820.93x = 17,742.33 × 5,981.64
  4. Step 4: Simplify right side
    11,820.93x = 106,128,230.82
  5. Step 5: Solve for x
    x = 106,128,230.82/11,820.93
  6. Step 6: Final answer
    x = 8,977.99

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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.