Home / 8,187.26-12,283.35-2,921.60

Finding the Fourth Proportional to 8,187.26, 12,283.35 and 2,921.60

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Solution

The fourth proportional to 8,187.26, 12,283.35 and 2,921.60 is: 4,383.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,187.26 : 12,283.35 = 2,921.60 : x
  2. Step 2: Convert to fraction form
    8,187.26/12,283.35 = 2,921.60/x
  3. Step 3: Cross multiply
    8,187.26x = 12,283.35 × 2,921.60
  4. Step 4: Simplify right side
    8,187.26x = 35,887,035.36
  5. Step 5: Solve for x
    x = 35,887,035.36/8,187.26
  6. Step 6: Final answer
    x = 4,383.28

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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.