Home / 10,317.09-15,470.99-2,919.80

Finding the Fourth Proportional to 10,317.09, 15,470.99 and 2,919.80

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Solution

The fourth proportional to 10,317.09, 15,470.99 and 2,919.80 is: 4,378.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,317.09 : 15,470.99 = 2,919.80 : x
  2. Step 2: Convert to fraction form
    10,317.09/15,470.99 = 2,919.80/x
  3. Step 3: Cross multiply
    10,317.09x = 15,470.99 × 2,919.80
  4. Step 4: Simplify right side
    10,317.09x = 45,172,104.65
  5. Step 5: Solve for x
    x = 45,172,104.65/10,317.09
  6. Step 6: Final answer
    x = 4,378.38

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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.