Home / 17,687.55-26,531.32-5,207.57

Finding the Fourth Proportional to 17,687.55, 26,531.32 and 5,207.57

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Solution

The fourth proportional to 17,687.55, 26,531.32 and 5,207.57 is: 7,811.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,687.55 : 26,531.32 = 5,207.57 : x
  2. Step 2: Convert to fraction form
    17,687.55/26,531.32 = 5,207.57/x
  3. Step 3: Cross multiply
    17,687.55x = 26,531.32 × 5,207.57
  4. Step 4: Simplify right side
    17,687.55x = 138,163,812.09
  5. Step 5: Solve for x
    x = 138,163,812.09/17,687.55
  6. Step 6: Final answer
    x = 7,811.36

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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.