Home / 8,963.28-13,448.79-3,418.29

Finding the Fourth Proportional to 8,963.28, 13,448.79 and 3,418.29

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Solution

The fourth proportional to 8,963.28, 13,448.79 and 3,418.29 is: 5,128.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,963.28 : 13,448.79 = 3,418.29 : x
  2. Step 2: Convert to fraction form
    8,963.28/13,448.79 = 3,418.29/x
  3. Step 3: Cross multiply
    8,963.28x = 13,448.79 × 3,418.29
  4. Step 4: Simplify right side
    8,963.28x = 45,971,864.37
  5. Step 5: Solve for x
    x = 45,971,864.37/8,963.28
  6. Step 6: Final answer
    x = 5,128.91

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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.