Home / 11,689.12-17,505.73-6,416.02

Finding the Fourth Proportional to 11,689.12, 17,505.73 and 6,416.02

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Solution

The fourth proportional to 11,689.12, 17,505.73 and 6,416.02 is: 9,608.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,689.12 : 17,505.73 = 6,416.02 : x
  2. Step 2: Convert to fraction form
    11,689.12/17,505.73 = 6,416.02/x
  3. Step 3: Cross multiply
    11,689.12x = 17,505.73 × 6,416.02
  4. Step 4: Simplify right side
    11,689.12x = 112,317,113.79
  5. Step 5: Solve for x
    x = 112,317,113.79/11,689.12
  6. Step 6: Final answer
    x = 9,608.69

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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.