Home / 7,845.18-11,751.57-6,287.82

Finding the Fourth Proportional to 7,845.18, 11,751.57 and 6,287.82

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Solution

The fourth proportional to 7,845.18, 11,751.57 and 6,287.82 is: 9,418.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,845.18 : 11,751.57 = 6,287.82 : x
  2. Step 2: Convert to fraction form
    7,845.18/11,751.57 = 6,287.82/x
  3. Step 3: Cross multiply
    7,845.18x = 11,751.57 × 6,287.82
  4. Step 4: Simplify right side
    7,845.18x = 73,891,756.88
  5. Step 5: Solve for x
    x = 73,891,756.88/7,845.18
  6. Step 6: Final answer
    x = 9,418.75

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1.5x scale

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.