Home / 8,720.39-13,074.82-4,506.37

Finding the Fourth Proportional to 8,720.39, 13,074.82 and 4,506.37

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Solution

The fourth proportional to 8,720.39, 13,074.82 and 4,506.37 is: 6,756.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,720.39 : 13,074.82 = 4,506.37 : x
  2. Step 2: Convert to fraction form
    8,720.39/13,074.82 = 4,506.37/x
  3. Step 3: Cross multiply
    8,720.39x = 13,074.82 × 4,506.37
  4. Step 4: Simplify right side
    8,720.39x = 58,919,932.65
  5. Step 5: Solve for x
    x = 58,919,932.65/8,720.39
  6. Step 6: Final answer
    x = 6,756.57

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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.