Home / 17,515.04-26,284.46-7,128.68

Finding the Fourth Proportional to 17,515.04, 26,284.46 and 7,128.68

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Solution

The fourth proportional to 17,515.04, 26,284.46 and 7,128.68 is: 10,697.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,515.04 : 26,284.46 = 7,128.68 : x
  2. Step 2: Convert to fraction form
    17,515.04/26,284.46 = 7,128.68/x
  3. Step 3: Cross multiply
    17,515.04x = 26,284.46 × 7,128.68
  4. Step 4: Simplify right side
    17,515.04x = 187,373,504.31
  5. Step 5: Solve for x
    x = 187,373,504.31/17,515.04
  6. Step 6: Final answer
    x = 10,697.86

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.