Home / 8,276.36-11,418.20-6,128.02

Finding the Fourth Proportional to 8,276.36, 11,418.20 and 6,128.02

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Solution

The fourth proportional to 8,276.36, 11,418.20 and 6,128.02 is: 8,454.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,276.36 : 11,418.20 = 6,128.02 : x
  2. Step 2: Convert to fraction form
    8,276.36/11,418.20 = 6,128.02/x
  3. Step 3: Cross multiply
    8,276.36x = 11,418.20 × 6,128.02
  4. Step 4: Simplify right side
    8,276.36x = 69,970,964.58
  5. Step 5: Solve for x
    x = 69,970,964.58/8,276.36
  6. Step 6: Final answer
    x = 8,454.32

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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.