Home / 8,216.64-11,340.69-4,815.87

Finding the Fourth Proportional to 8,216.64, 11,340.69 and 4,815.87

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Solution

The fourth proportional to 8,216.64, 11,340.69 and 4,815.87 is: 6,646.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,216.64 : 11,340.69 = 4,815.87 : x
  2. Step 2: Convert to fraction form
    8,216.64/11,340.69 = 4,815.87/x
  3. Step 3: Cross multiply
    8,216.64x = 11,340.69 × 4,815.87
  4. Step 4: Simplify right side
    8,216.64x = 54,615,288.75
  5. Step 5: Solve for x
    x = 54,615,288.75/8,216.64
  6. Step 6: Final answer
    x = 6,646.91

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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.