Home / 8,102.36-11,178.40-6,214.52

Finding the Fourth Proportional to 8,102.36, 11,178.40 and 6,214.52

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Solution

The fourth proportional to 8,102.36, 11,178.40 and 6,214.52 is: 8,573.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,102.36 : 11,178.40 = 6,214.52 : x
  2. Step 2: Convert to fraction form
    8,102.36/11,178.40 = 6,214.52/x
  3. Step 3: Cross multiply
    8,102.36x = 11,178.40 × 6,214.52
  4. Step 4: Simplify right side
    8,102.36x = 69,468,390.37
  5. Step 5: Solve for x
    x = 69,468,390.37/8,102.36
  6. Step 6: Final answer
    x = 8,573.85

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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.