Home / 8,187.87-11,298.43-4,650.39

Finding the Fourth Proportional to 8,187.87, 11,298.43 and 4,650.39

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Solution

The fourth proportional to 8,187.87, 11,298.43 and 4,650.39 is: 6,417.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,187.87 : 11,298.43 = 4,650.39 : x
  2. Step 2: Convert to fraction form
    8,187.87/11,298.43 = 4,650.39/x
  3. Step 3: Cross multiply
    8,187.87x = 11,298.43 × 4,650.39
  4. Step 4: Simplify right side
    8,187.87x = 52,542,105.89
  5. Step 5: Solve for x
    x = 52,542,105.89/8,187.87
  6. Step 6: Final answer
    x = 6,417.07

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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.