Home / 8,768.72-13,146.36-3,571.28

Finding the Fourth Proportional to 8,768.72, 13,146.36 and 3,571.28

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Solution

The fourth proportional to 8,768.72, 13,146.36 and 3,571.28 is: 5,354.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,768.72 : 13,146.36 = 3,571.28 : x
  2. Step 2: Convert to fraction form
    8,768.72/13,146.36 = 3,571.28/x
  3. Step 3: Cross multiply
    8,768.72x = 13,146.36 × 3,571.28
  4. Step 4: Simplify right side
    8,768.72x = 46,949,332.54
  5. Step 5: Solve for x
    x = 46,949,332.54/8,768.72
  6. Step 6: Final answer
    x = 5,354.18

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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.