Home / 8,298.09-11,455.74-6,405.59

Finding the Fourth Proportional to 8,298.09, 11,455.74 and 6,405.59

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Solution

The fourth proportional to 8,298.09, 11,455.74 and 6,405.59 is: 8,843.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,298.09 : 11,455.74 = 6,405.59 : x
  2. Step 2: Convert to fraction form
    8,298.09/11,455.74 = 6,405.59/x
  3. Step 3: Cross multiply
    8,298.09x = 11,455.74 × 6,405.59
  4. Step 4: Simplify right side
    8,298.09x = 73,380,716.31
  5. Step 5: Solve for x
    x = 73,380,716.31/8,298.09
  6. Step 6: Final answer
    x = 8,843.09

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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.