Home / 11,820.52-17,719.84-6,622.75

Finding the Fourth Proportional to 11,820.52, 17,719.84 and 6,622.75

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Solution

The fourth proportional to 11,820.52, 17,719.84 and 6,622.75 is: 9,928.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,820.52 : 17,719.84 = 6,622.75 : x
  2. Step 2: Convert to fraction form
    11,820.52/17,719.84 = 6,622.75/x
  3. Step 3: Cross multiply
    11,820.52x = 17,719.84 × 6,622.75
  4. Step 4: Simplify right side
    11,820.52x = 117,354,070.36
  5. Step 5: Solve for x
    x = 117,354,070.36/11,820.52
  6. Step 6: Final answer
    x = 9,928.00

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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.