Home / 8,515.44-11,752.92-5,329.20

Finding the Fourth Proportional to 8,515.44, 11,752.92 and 5,329.20

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Solution

The fourth proportional to 8,515.44, 11,752.92 and 5,329.20 is: 7,355.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,515.44 : 11,752.92 = 5,329.20 : x
  2. Step 2: Convert to fraction form
    8,515.44/11,752.92 = 5,329.20/x
  3. Step 3: Cross multiply
    8,515.44x = 11,752.92 × 5,329.20
  4. Step 4: Simplify right side
    8,515.44x = 62,633,661.26
  5. Step 5: Solve for x
    x = 62,633,661.26/8,515.44
  6. Step 6: Final answer
    x = 7,355.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.