Home / 11,984.64-17,980.68-6,145.32

Finding the Fourth Proportional to 11,984.64, 17,980.68 and 6,145.32

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Solution

The fourth proportional to 11,984.64, 17,980.68 and 6,145.32 is: 9,219.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,984.64 : 17,980.68 = 6,145.32 : x
  2. Step 2: Convert to fraction form
    11,984.64/17,980.68 = 6,145.32/x
  3. Step 3: Cross multiply
    11,984.64x = 17,980.68 × 6,145.32
  4. Step 4: Simplify right side
    11,984.64x = 110,497,032.42
  5. Step 5: Solve for x
    x = 110,497,032.42/11,984.64
  6. Step 6: Final answer
    x = 9,219.89

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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.