Home / 6,435.74-9,636.69-5,179.65

Finding the Fourth Proportional to 6,435.74, 9,636.69 and 5,179.65

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Solution

The fourth proportional to 6,435.74, 9,636.69 and 5,179.65 is: 7,755.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,435.74 : 9,636.69 = 5,179.65 : x
  2. Step 2: Convert to fraction form
    6,435.74/9,636.69 = 5,179.65/x
  3. Step 3: Cross multiply
    6,435.74x = 9,636.69 × 5,179.65
  4. Step 4: Simplify right side
    6,435.74x = 49,914,681.36
  5. Step 5: Solve for x
    x = 49,914,681.36/6,435.74
  6. Step 6: Final answer
    x = 7,755.86

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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.