Home / 17,126.40-25,689.60-5,440.50

Finding the Fourth Proportional to 17,126.40, 25,689.60 and 5,440.50

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Solution

The fourth proportional to 17,126.40, 25,689.60 and 5,440.50 is: 8,160.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,126.40 : 25,689.60 = 5,440.50 : x
  2. Step 2: Convert to fraction form
    17,126.40/25,689.60 = 5,440.50/x
  3. Step 3: Cross multiply
    17,126.40x = 25,689.60 × 5,440.50
  4. Step 4: Simplify right side
    17,126.40x = 139,764,268.80
  5. Step 5: Solve for x
    x = 139,764,268.80/17,126.40
  6. Step 6: Final answer
    x = 8,160.75

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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.