Home / 17,118.72-25,731.54-11,312.64

Finding the Fourth Proportional to 17,118.72, 25,731.54 and 11,312.64

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Solution

The fourth proportional to 17,118.72, 25,731.54 and 11,312.64 is: 17,004.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,118.72 : 25,731.54 = 11,312.64 : x
  2. Step 2: Convert to fraction form
    17,118.72/25,731.54 = 11,312.64/x
  3. Step 3: Cross multiply
    17,118.72x = 25,731.54 × 11,312.64
  4. Step 4: Simplify right side
    17,118.72x = 291,091,648.67
  5. Step 5: Solve for x
    x = 291,091,648.67/17,118.72
  6. Step 6: Final answer
    x = 17,004.29

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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.