Home / 10,822.60-16,216.30-9,785.80

Finding the Fourth Proportional to 10,822.60, 16,216.30 and 9,785.80

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Solution

The fourth proportional to 10,822.60, 16,216.30 and 9,785.80 is: 14,662.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,822.60 : 16,216.30 = 9,785.80 : x
  2. Step 2: Convert to fraction form
    10,822.60/16,216.30 = 9,785.80/x
  3. Step 3: Cross multiply
    10,822.60x = 16,216.30 × 9,785.80
  4. Step 4: Simplify right side
    10,822.60x = 158,689,468.54
  5. Step 5: Solve for x
    x = 158,689,468.54/10,822.60
  6. Step 6: Final answer
    x = 14,662.79

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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.