Home / 10,891.94-15,033.96-6,418.28

Finding the Fourth Proportional to 10,891.94, 15,033.96 and 6,418.28

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Solution

The fourth proportional to 10,891.94, 15,033.96 and 6,418.28 is: 8,859.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,891.94 : 15,033.96 = 6,418.28 : x
  2. Step 2: Convert to fraction form
    10,891.94/15,033.96 = 6,418.28/x
  3. Step 3: Cross multiply
    10,891.94x = 15,033.96 × 6,418.28
  4. Step 4: Simplify right side
    10,891.94x = 96,492,164.79
  5. Step 5: Solve for x
    x = 96,492,164.79/10,891.94
  6. Step 6: Final answer
    x = 8,859.04

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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.