Home / 8,729.70-13,100.89-6,544.32

Finding the Fourth Proportional to 8,729.70, 13,100.89 and 6,544.32

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Solution

The fourth proportional to 8,729.70, 13,100.89 and 6,544.32 is: 9,821.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,729.70 : 13,100.89 = 6,544.32 : x
  2. Step 2: Convert to fraction form
    8,729.70/13,100.89 = 6,544.32/x
  3. Step 3: Cross multiply
    8,729.70x = 13,100.89 × 6,544.32
  4. Step 4: Simplify right side
    8,729.70x = 85,736,416.44
  5. Step 5: Solve for x
    x = 85,736,416.44/8,729.70
  6. Step 6: Final answer
    x = 9,821.23

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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.