Home / 17,921.72-26,885.83-7,385.88

Finding the Fourth Proportional to 17,921.72, 26,885.83 and 7,385.88

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Solution

The fourth proportional to 17,921.72, 26,885.83 and 7,385.88 is: 11,080.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,921.72 : 26,885.83 = 7,385.88 : x
  2. Step 2: Convert to fraction form
    17,921.72/26,885.83 = 7,385.88/x
  3. Step 3: Cross multiply
    17,921.72x = 26,885.83 × 7,385.88
  4. Step 4: Simplify right side
    17,921.72x = 198,575,495.62
  5. Step 5: Solve for x
    x = 198,575,495.62/17,921.72
  6. Step 6: Final answer
    x = 11,080.16

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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.